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331123132113312 = 25372116399256573
BaseRepresentation
bin100101101001001111001110…
…0101010101010000110100000
31121102102001200101212020001110
41023102132130222222012200
5321400110133310111222
63132123511130303320
7126513566615465400
oct11322363452520640
91542361611766043
10331123132113312
1196562593796690
1231179a6ab87b40
131129ba14b86b36
145baa633528800
152843414ce330c
hex12d279caaa1a0

331123132113312 has 144 divisors (see below), whose sum is σ = 1103027057147232. Its totient is φ = 86006008327680.

The previous prime is 331123132113259. The next prime is 331123132113349. The reversal of 331123132113312 is 213311231321133.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 331123132113312.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3199576543 + ... + 3199680030.

It is an arithmetic number, because the mean of its divisors is an integer number (7659910119078).

Almost surely, 2331123132113312 is an apocalyptic number.

331123132113312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

331123132113312 is an abundant number, since it is smaller than the sum of its proper divisors (771903925033920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331123132113312 is a wasteful number, since it uses less digits than its factorization.

331123132113312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399256611 (or 6399256596 counting only the distinct ones).

The product of its digits is 5832, while the sum is 30.

Adding to 331123132113312 its reverse (213311231321133), we get a palindrome (544434363434445).

The spelling of 331123132113312 in words is "three hundred thirty-one trillion, one hundred twenty-three billion, one hundred thirty-two million, one hundred thirteen thousand, three hundred twelve".

Divisors: 1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 48 49 56 66 77 84 88 96 98 112 132 147 154 168 176 196 224 231 264 294 308 336 352 392 462 528 539 588 616 672 784 924 1056 1078 1176 1232 1568 1617 1848 2156 2352 2464 3234 3696 4312 4704 6468 7392 8624 12936 17248 25872 51744 6399256573 12798513146 19197769719 25597026292 38395539438 44794796011 51194052584 70391822303 76791078876 89589592022 102388105168 134384388033 140783644606 153582157752 179179184044 204776210336 211175466909 268768776066 281567289212 307164315504 313563572077 358358368088 422350933818 492742756121 537537552132 563134578424 614328631008 627127144154 716716736176 844701867636 940690716231 985485512242 1075075104264 1126269156848 1254254288308 1433433472352 1478228268363 1689403735272 1881381432462 1970971024484 2150150208528 2252538313696 2508508576616 2956456536726 3378807470544 3449199292847 3762762864924 3941942048968 4300300417056 5017017153232 5912913073452 6757614941088 6898398585694 7525525729848 7883884097936 10034034306464 10347597878541 11825826146904 13796797171388 15051051459696 15767768195872 20695195757082 23651652293808 27593594342776 30102102919392 41390391514164 47303304587616 55187188685552 82780783028328 110374377371104 165561566056656 331123132113312