231021402304 has 84 divisors (see below), whose sum is σ = 581759339400. Its totient is φ = 90008325120.

The previous prime is 231021402289. The next prime is 231021402319. The reversal of 231021402304 is 403204120132.

231021402304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231021402289) and next prime (231021402319).

It is a Harshad number since it is a multiple of its sum of digits (22).

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 11 ways as a sum of consecutive naturals, for example, 3314029 + ... + 3383020.

Almost surely, 2^231021402304 is an apocalyptic number.

It is an amenable number.

231021402304 is an abundant number, since it is smaller than the sum of its proper divisors (350737937096).

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

231021402304 is a wasteful number, since it uses less digits than its factorization.

231021402304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697086 (or 6697069 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 231021402304 its reverse (403204120132), we get a palindrome (634225522436).

The spelling of 231021402304 in words is "two hundred thirty-one billion, twenty-one million, four hundred two thousand, three hundred four".