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231123012321110 = 25713598334244837
BaseRepresentation
bin110100100011010010000101…
…000011000111111101010110
31010022100010220010010121202112
4310203102011003013331112
5220243204412123233420
62135320240204111022
766453041463155540
oct6443220503077526
91108303803117675
10231123012321110
11677087a00aa898
1221b09231235472
139bc6a63c8a740
1441105b0852690
151bac08ec5e8c5
hexd234850c7f56

231123012321110 has 64 divisors (see below), whose sum is σ = 512035043974272. Its totient is φ = 73145383934976.

The previous prime is 231123012321107. The next prime is 231123012321151. The reversal of 231123012321110 is 11123210321132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52325612 + ... + 56570448.

It is an arithmetic number, because the mean of its divisors is an integer number (8000547562098).

Almost surely, 2231123012321110 is an apocalyptic number.

231123012321110 is an abundant number, since it is smaller than the sum of its proper divisors (280912031653162).

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

231123012321110 is a wasteful number, since it uses less digits than its factorization.

231123012321110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304697.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 231123012321110 its reverse (11123210321132), we get a palindrome (242246222642242).

The spelling of 231123012321110 in words is "two hundred thirty-one trillion, one hundred twenty-three billion, twelve million, three hundred twenty-one thousand, one hundred ten".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 59833 119666 299165 418831 598330 777829 837662 1555658 2094155 3889145 4188310 4244837 5444803 7778290 8489674 10889606 21224185 27224015 29713859 42448370 54448030 55182881 59427718 110365762 148569295 275914405 297138590 386280167 551828810 772560334 1931400835 3862801670 253981332221 507962664442 1269906661105 1777869325547 2539813322210 3301757318873 3555738651094 6603514637746 8889346627735 16508786594365 17778693255470 23112301232111 33017573188730 46224602464222 115561506160555 231123012321110