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231023101122112 = 2613277671996541
BaseRepresentation
bin110100100001110101000001…
…111000001001011001000000
31010021222121000010120211120211
4310201311001320021121000
5220240040302341401422
62135202314132243504
766442603545040225
oct6441650170113100
91107877003524524
10231023101122112
116767a38a907252
1221ab19a9170594
139bba5009a0290
14410981350994c
151ba9693716577
hexd21d41e09640

231023101122112 has 28 divisors (see below), whose sum is σ = 493700809851676. Its totient is φ = 106626046671360.

The previous prime is 231023101121977. The next prime is 231023101122131. The reversal of 231023101122112 is 211221101320132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 109694286038016 + 121328815084096 = 10473504^2 + 11014936^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138835997439 + ... + 138835999102.

It is an arithmetic number, because the mean of its divisors is an integer number (17632171780417).

Almost surely, 2231023101122112 is an apocalyptic number.

It is an amenable number.

231023101122112 is an abundant number, since it is smaller than the sum of its proper divisors (262677708729564).

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

231023101122112 is a wasteful number, since it uses less digits than its factorization.

231023101122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277671996566 (or 277671996556 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 231023101122112 its reverse (211221101320132), we get a palindrome (442244202442244).

The spelling of 231023101122112 in words is "two hundred thirty-one trillion, twenty-three billion, one hundred one million, one hundred twenty-two thousand, one hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 208 416 832 277671996541 555343993082 1110687986164 2221375972328 3609735955033 4442751944656 7219471910066 8885503889312 14438943820132 17771007778624 28877887640264 57755775280528 115511550561056 231023101122112