13731611020 has 24 divisors (see below), whose sum is σ = 28864180800. Its totient is φ = 5487349632.

The previous prime is 13731611017. The next prime is 13731611027. The reversal of 13731611020 is 2011613731.

13731611020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13731611027) by changing a digit.

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, 309625 + ... + 351184.

It is an arithmetic number, because the mean of its divisors is an integer number (1202674200).

Almost surely, 2^13731611020 is an apocalyptic number.

13731611020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13731611020 is an abundant number, since it is smaller than the sum of its proper divisors (15132569780).

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

13731611020 is a wasteful number, since it uses less digits than its factorization.

13731611020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661857 (or 661855 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The spelling of 13731611020 in words is "thirteen billion, seven hundred thirty-one million, six hundred eleven thousand, twenty".