103131130020 has 48 divisors (see below), whose sum is σ = 305753470848. Its totient is φ = 25883891200.

The previous prime is 103131130019. The next prime is 103131130049. The reversal of 103131130020 is 20031131301.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50553456 + ... + 50555495.

It is an arithmetic number, because the mean of its divisors is an integer number (6369863976).

Almost surely, 2^103131130020 is an apocalyptic number.

103131130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103131130020 is an abundant number, since it is smaller than the sum of its proper divisors (202622340828).

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

103131130020 is a wasteful number, since it uses less digits than its factorization.

103131130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101108980 (or 101108978 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 103131130020 its reverse (20031131301), we get a palindrome (123162261321).

The spelling of 103131130020 in words is "one hundred three billion, one hundred thirty-one million, one hundred thirty thousand, twenty".