231312311230 has 256 divisors, whose sum is σ = 614051020800. Its totient is φ = 60306301440.

The previous prime is 231312311221. The next prime is 231312311257. The reversal of 231312311230 is 32113213132.

It is a super-2 number, since 2×231312311230² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 127 ways as a sum of consecutive naturals, for example, 4347931 + ... + 4400809.

It is an arithmetic number, because the mean of its divisors is an integer number (2398636800).

Almost surely, 2^231312311230 is an apocalyptic number.

231312311230 is an abundant number, since it is smaller than the sum of its proper divisors (382738709570).

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

231312311230 is a wasteful number, since it uses less digits than its factorization.

231312311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52959.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231312311230 its reverse (32113213132), we get a palindrome (263425524362).

The spelling of 231312311230 in words is "two hundred thirty-one billion, three hundred twelve million, three hundred eleven thousand, two hundred thirty".