331311103020 has 72 divisors (see below), whose sum is σ = 1005049805760. Its totient is φ = 88343228160.

The previous prime is 331311103009. The next prime is 331311103073. The reversal of 331311103020 is 20301113133.

It is a happy number.

331311103020 is a `hidden beast` number, since 331 + 31 + 1 + 1 + 0 + 302 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 331311102984 and 331311103002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2756541 + ... + 2874219.

It is an arithmetic number, because the mean of its divisors is an integer number (13959025080).

Almost surely, 2^331311103020 is an apocalyptic number.

331311103020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331311103020 is an abundant number, since it is smaller than the sum of its proper divisors (673738702740).

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

331311103020 is a wasteful number, since it uses less digits than its factorization.

331311103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133335 (or 133330 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 331311103020 its reverse (20301113133), we get a palindrome (351612216153).

The spelling of 331311103020 in words is "three hundred thirty-one billion, three hundred eleven million, one hundred three thousand, twenty".