331312023402 has 16 divisors (see below), whose sum is σ = 662646637920. Its totient is φ = 110433575952.

The previous prime is 331312023377. The next prime is 331312023421. The reversal of 331312023402 is 204320213133.

331312023402 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 747577 + ... + 1105212.

It is an arithmetic number, because the mean of its divisors is an integer number (41415414870).

Almost surely, 2^331312023402 is an apocalyptic number.

331312023402 is an abundant number, since it is smaller than the sum of its proper divisors (331334614518).

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

331312023402 is a wasteful number, since it uses less digits than its factorization.

331312023402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882597.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 331312023402 its reverse (204320213133), we get a palindrome (535632236535).

The spelling of 331312023402 in words is "three hundred thirty-one billion, three hundred twelve million, twenty-three thousand, four hundred two".