20000331020 has 24 divisors (see below), whose sum is σ = 44471325024. Its totient is φ = 7529536256.

The previous prime is 20000330989. The next prime is 20000331041. The reversal of 20000331020 is 2013300002.

It is a junction number, because it is equal to n+sod(n) for n = 20000330992 and 20000331010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29411912 + ... + 29412591.

It is an arithmetic number, because the mean of its divisors is an integer number (1852971876).

Almost surely, 2^20000331020 is an apocalyptic number.

20000331020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000331020 is an abundant number, since it is smaller than the sum of its proper divisors (24470994004).

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

20000331020 is a wasteful number, since it uses less digits than its factorization.

20000331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58824529 (or 58824527 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20000331020 its reverse (2013300002), we get a palindrome (22013631022).

The spelling of 20000331020 in words is "twenty billion, three hundred thirty-one thousand, twenty".