331320113220 has 48 divisors (see below), whose sum is σ = 927752874048. Its totient is φ = 88346643840.

The previous prime is 331320113183. The next prime is 331320113233. The reversal of 331320113220 is 22311023133.

It is a super-2 number, since 2×331320113220² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877782 + ... + 1197138.

It is an arithmetic number, because the mean of its divisors is an integer number (19328184876).

Almost surely, 2^331320113220 is an apocalyptic number.

331320113220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331320113220 is an abundant number, since it is smaller than the sum of its proper divisors (596432760828).

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

331320113220 is a wasteful number, since it uses less digits than its factorization.

331320113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336660 (or 336658 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 331320113220 its reverse (22311023133), we get a palindrome (353631136353).

The spelling of 331320113220 in words is "three hundred thirty-one billion, three hundred twenty million, one hundred thirteen thousand, two hundred twenty".