231112100002120 has 32 divisors (see below), whose sum is σ = 526584531657600. Its totient is φ = 91274652151488.

The previous prime is 231112100002109. The next prime is 231112100002129. The reversal of 231112100002120 is 21200001211132.

It is a junction number, because it is equal to n+sod(n) for n = 231112100002094 and 231112100002103.

It is not an unprimeable number, because it can be changed into a prime (231112100002129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36568367094 + ... + 36568373413.

It is an arithmetic number, because the mean of its divisors is an integer number (16455766614300).

Almost surely, 2^{231112100002120} is an apocalyptic number.

231112100002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231112100002120 is an abundant number, since it is smaller than the sum of its proper divisors (295472431655480).

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

231112100002120 is a wasteful number, since it uses less digits than its factorization.

231112100002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73136740597 (or 73136740593 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 231112100002120 its reverse (21200001211132), we get a palindrome (252312101213252).

The spelling of 231112100002120 in words is "two hundred thirty-one trillion, one hundred twelve billion, one hundred million, two thousand, one hundred twenty".