30131012020 has 24 divisors (see below), whose sum is σ = 63539884800. Its totient is φ = 12001974432.

The previous prime is 30131011961. The next prime is 30131012071. The reversal of 30131012020 is 2021013103.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3147000 + ... + 3156559.

It is an arithmetic number, because the mean of its divisors is an integer number (2647495200).

Almost surely, 2^30131012020 is an apocalyptic number.

It is an amenable number.

30131012020 is an abundant number, since it is smaller than the sum of its proper divisors (33408872780).

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

30131012020 is a wasteful number, since it uses less digits than its factorization.

30131012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6303807 (or 6303805 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30131012020 its reverse (2021013103), we get a palindrome (32152025123).

The spelling of 30131012020 in words is "thirty billion, one hundred thirty-one million, twelve thousand, twenty".