231211112320122 has 32 divisors (see below), whose sum is σ = 516764525989824. Its totient is φ = 68355096028800.

The previous prime is 231211112320109. The next prime is 231211112320157. The reversal of 231211112320122 is 221023211112132.

It is a junction number, because it is equal to n+sod(n) for n = 231211112320092 and 231211112320101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42721932313 + ... + 42721937724.

It is an arithmetic number, because the mean of its divisors is an integer number (16148891437182).

Almost surely, 2^{231211112320122} is an apocalyptic number.

231211112320122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231211112320122 is an abundant number, since it is smaller than the sum of its proper divisors (285553413669702).

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

231211112320122 is a wasteful number, since it uses less digits than its factorization.

231211112320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85443870094.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 231211112320122 its reverse (221023211112132), we get a palindrome (452234323432254).

The spelling of 231211112320122 in words is "two hundred thirty-one trillion, two hundred eleven billion, one hundred twelve million, three hundred twenty thousand, one hundred twenty-two".