331012131023420 has 96 divisors (see below), whose sum is σ = 877620195809280. Its totient is φ = 101866629795840.

The previous prime is 331012131023417. The next prime is 331012131023477. The reversal of 331012131023420 is 24320131210133.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 331012131023420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1360276709 + ... + 1360520028.

It is an arithmetic number, because the mean of its divisors is an integer number (9141877039680).

Almost surely, 2^{331012131023420} is an apocalyptic number.

It is an amenable number.

331012131023420 is an abundant number, since it is smaller than the sum of its proper divisors (546608064785860).

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

331012131023420 is a wasteful number, since it uses less digits than its factorization.

331012131023420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720796843 (or 2720796841 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 331012131023420 its reverse (24320131210133), we get a palindrome (355332262233553).

The spelling of 331012131023420 in words is "three hundred thirty-one trillion, twelve billion, one hundred thirty-one million, twenty-three thousand, four hundred twenty".