320012213220031 has 16 divisors (see below), whose sum is σ = 341733272371200. Its totient is φ = 299003985352800.

The previous prime is 320012213220023. The next prime is 320012213220053. The reversal of 320012213220031 is 130022312210023.

It is a cyclic number.

It is not a de Polignac number, because 320012213220031 - 2³ = 320012213220023 is a prime.

It is a super-2 number, since 2×320012213220031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320012213219984 and 320012213220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320012213220431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39110946 + ... + 46579936.

It is an arithmetic number, because the mean of its divisors is an integer number (21358329523200).

Almost surely, 2^{320012213220031} is an apocalyptic number.

320012213220031 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

320012213220031 is a deficient number, since it is larger than the sum of its proper divisors (21721059151169).

320012213220031 is a wasteful number, since it uses less digits than its factorization.

320012213220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516710.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 320012213220031 its reverse (130022312210023), we get a palindrome (450034525430054).

The spelling of 320012213220031 in words is "three hundred twenty trillion, twelve billion, two hundred thirteen million, two hundred twenty thousand, thirty-one".