331344423402 has 16 divisors (see below), whose sum is σ = 662854525632. Its totient is φ = 110420528000.

The previous prime is 331344423391. The next prime is 331344423413. The reversal of 331344423402 is 204324443133.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (331344423391) and next prime (331344423413).

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, 6877278 + ... + 6925289.

It is an arithmetic number, because the mean of its divisors is an integer number (41428407852).

Almost surely, 2^331344423402 is an apocalyptic number.

331344423402 is an abundant number, since it is smaller than the sum of its proper divisors (331510102230).

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

331344423402 is a wasteful number, since it uses less digits than its factorization.

331344423402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13806573.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 331344423402 its reverse (204324443133), we get a palindrome (535668866535).

The spelling of 331344423402 in words is "three hundred thirty-one billion, three hundred forty-four million, four hundred twenty-three thousand, four hundred two".