231032302144 has 56 divisors (see below), whose sum is σ = 525164352768. Its totient is φ = 98784030720.

The previous prime is 231032302139. The next prime is 231032302187. The reversal of 231032302144 is 441203230132.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405169 + ... + 791344.

Almost surely, 2^231032302144 is an apocalyptic number.

It is an amenable number.

231032302144 is an abundant number, since it is smaller than the sum of its proper divisors (294132050624).

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

231032302144 is a wasteful number, since it uses less digits than its factorization.

231032302144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196963 (or 1196953 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 231032302144 its reverse (441203230132), we get a palindrome (672235532276).

The spelling of 231032302144 in words is "two hundred thirty-one billion, thirty-two million, three hundred two thousand, one hundred forty-four".