231240002312 has 32 divisors (see below), whose sum is σ = 493555740480. Its totient is φ = 100539130560.

The previous prime is 231240002221. The next prime is 231240002317. The reversal of 231240002312 is 213200042132.

It is not an unprimeable number, because it can be changed into a prime (231240002317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57122483 + ... + 57126530.

It is an arithmetic number, because the mean of its divisors is an integer number (15423616890).

Almost surely, 2^231240002312 is an apocalyptic number.

231240002312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231240002312 is an abundant number, since it is smaller than the sum of its proper divisors (262315738168).

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

231240002312 is a wasteful number, since it uses less digits than its factorization.

231240002312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114249053 (or 114249049 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 231240002312 its reverse (213200042132), we get a palindrome (444440044444).

The spelling of 231240002312 in words is "two hundred thirty-one billion, two hundred forty million, two thousand, three hundred twelve".