231304011132 has 24 divisors (see below), whose sum is σ = 544660824400. Its totient is φ = 76393984896.

The previous prime is 231304011077. The next prime is 231304011139. The reversal of 231304011132 is 231110403132.

It is a junction number, because it is equal to n+sod(n) for n = 231304011099 and 231304011108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231304011139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 88417657 + ... + 88420272.

Almost surely, 2^231304011132 is an apocalyptic number.

It is an amenable number.

231304011132 is an abundant number, since it is smaller than the sum of its proper divisors (313356813268).

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

231304011132 is a wasteful number, since it uses less digits than its factorization.

231304011132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176838045 (or 176838043 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231304011132 its reverse (231110403132), we get a palindrome (462414414264).

The spelling of 231304011132 in words is "two hundred thirty-one billion, three hundred four million, eleven thousand, one hundred thirty-two".