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231012012222120 = 233511512269737129
BaseRepresentation
bin110100100001101010101100…
…111011010110011010101000
31010021221112101022212100111010
4310201222230323112122220
5220234400100112101440
62135153241530503520
766442032005662563
oct6441525473263250
91107845338770433
10231012012222120
116767570a479598
1221aab813594ba0
139bb945451a5ac
1441090808d74da
151ba9244e66580
hexd21aaced66a8

231012012222120 has 128 divisors (see below), whose sum is σ = 693944796672000. Its totient is φ = 61522471987200.

The previous prime is 231012012222073. The next prime is 231012012222143. The reversal of 231012012222120 is 21222210210132.

231012012222120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313025716 + ... + 313762844.

It is an arithmetic number, because the mean of its divisors is an integer number (5421443724000).

Almost surely, 2231012012222120 is an apocalyptic number.

231012012222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231012012222120 is an abundant number, since it is smaller than the sum of its proper divisors (462932784449880).

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

231012012222120 is a wasteful number, since it uses less digits than its factorization.

231012012222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740563 (or 740559 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 231012012222120 its reverse (21222210210132), we get a palindrome (252234222432252).

The spelling of 231012012222120 in words is "two hundred thirty-one trillion, twelve billion, twelve million, two hundred twenty-two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1151 2269 2302 3453 4538 4604 5755 6807 6906 9076 9208 11345 11510 13614 13812 17265 18152 22690 23020 27228 27624 34035 34530 45380 46040 54456 68070 69060 90760 136140 138120 272280 737129 1474258 2211387 2611619 2948516 3685645 4422774 5223238 5897032 7371290 7834857 8845548 10446476 11056935 13058095 14742580 15669714 17691096 20892952 22113870 26116190 29485160 31339428 39174285 44227740 52232380 62678856 78348570 88455480 104464760 156697140 313394280 848435479 1672545701 1696870958 2545306437 3345091402 3393741916 4242177395 5017637103 5090612874 6690182804 6787483832 8362728505 8484354790 10035274206 10181225748 12726532185 13380365608 16725457010 16968709580 20070548412 20362451496 25088185515 25453064370 33450914020 33937419160 40141096824 50176371030 50906128740 66901828040 100352742060 101812257480 200705484120 1925100101851 3850200203702 5775300305553 7700400407404 9625500509255 11550600611106 15400800814808 19251001018510 23101201222212 28876501527765 38502002037020 46202402444424 57753003055530 77004004074040 115506006111060 231012012222120