20032131020 has 24 divisors (see below), whose sum is σ = 45891791568. Its totient is φ = 7284411200.

The previous prime is 20032131013. The next prime is 20032131043. The reversal of 20032131020 is 2013123002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20032130986 and 20032131004.

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, 45527351 + ... + 45527790.

It is an arithmetic number, because the mean of its divisors is an integer number (1912157982).

Almost surely, 2^20032131020 is an apocalyptic number.

20032131020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20032131020 is an abundant number, since it is smaller than the sum of its proper divisors (25859660548).

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

20032131020 is a wasteful number, since it uses less digits than its factorization.

20032131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91055161 (or 91055159 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20032131020 its reverse (2013123002), we get a palindrome (22045254022).

The spelling of 20032131020 in words is "twenty billion, thirty-two million, one hundred thirty-one thousand, twenty".