331344442431 has 12 divisors (see below), whose sum is σ = 494047627840. Its totient is φ = 213770607840.

The previous prime is 331344442421. The next prime is 331344442433. The reversal of 331344442431 is 134244443133.

331344442431 is a `hidden beast` number, since 3 + 31 + 344 + 44 + 243 + 1 = 666.

It is not a de Polignac number, because 331344442431 - 2¹⁸ = 331344180287 is a prime.

It is a super-2 number, since 2×331344442431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331344442433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 593806966 + ... + 593807523.

Almost surely, 2^331344442431 is an apocalyptic number.

331344442431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

331344442431 is a deficient number, since it is larger than the sum of its proper divisors (162703185409).

331344442431 is a wasteful number, since it uses less digits than its factorization.

331344442431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187614526 (or 1187614523 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

Adding to 331344442431 its reverse (134244443133), we get a palindrome (465588885564).

The spelling of 331344442431 in words is "three hundred thirty-one billion, three hundred forty-four million, four hundred forty-two thousand, four hundred thirty-one".