231400132312 has 32 divisors (see below), whose sum is σ = 441175691520. Its totient is φ = 113754896640.

The previous prime is 231400132309. The next prime is 231400132333. The reversal of 231400132312 is 213231004132.

231400132312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231400132312² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060233 + ... + 1259719.

It is an arithmetic number, because the mean of its divisors is an integer number (13786740360).

Almost surely, 2^231400132312 is an apocalyptic number.

It is an amenable number.

231400132312 is a deficient number, since it is larger than the sum of its proper divisors (209775559208).

231400132312 is a wasteful number, since it uses less digits than its factorization.

231400132312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201931 (or 201927 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231400132312 its reverse (213231004132), we get a palindrome (444631136444).

The spelling of 231400132312 in words is "two hundred thirty-one billion, four hundred million, one hundred thirty-two thousand, three hundred twelve".