231302421311 has 96 divisors (see below), whose sum is σ = 283649845248. Its totient is φ = 187163504640.

The previous prime is 231302421263. The next prime is 231302421359. The reversal of 231302421311 is 113124203132.

It is an interprime number because it is at equal distance from previous prime (231302421263) and next prime (231302421359).

It is not a de Polignac number, because 231302421311 - 2²² = 231298227007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231302421011) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 311308406 + ... + 311309148.

It is an arithmetic number, because the mean of its divisors is an integer number (2954685888).

Almost surely, 2^231302421311 is an apocalyptic number.

231302421311 is a deficient number, since it is larger than the sum of its proper divisors (52347423937).

231302421311 is a wasteful number, since it uses less digits than its factorization.

231302421311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 231302421311 its reverse (113124203132), we get a palindrome (344426624443).

The spelling of 231302421311 in words is "two hundred thirty-one billion, three hundred two million, four hundred twenty-one thousand, three hundred eleven".