131002110120021 has 48 divisors (see below), whose sum is σ = 204329019407040. Its totient is φ = 74437613349120.

The previous prime is 131002110119987. The next prime is 131002110120043. The reversal of 131002110120021 is 120021011200131.

It is not a de Polignac number, because 131002110120021 - 2²⁷ = 131001975902293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131002110120221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 996170745 + ... + 996302241.

It is an arithmetic number, because the mean of its divisors is an integer number (4256854570980).

Almost surely, 2^{131002110120021} is an apocalyptic number.

It is an amenable number.

131002110120021 is a deficient number, since it is larger than the sum of its proper divisors (73326909287019).

131002110120021 is a wasteful number, since it uses less digits than its factorization.

131002110120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169554 (or 169547 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 131002110120021 its reverse (120021011200131), we get a palindrome (251023121320152).

The spelling of 131002110120021 in words is "one hundred thirty-one trillion, two billion, one hundred ten million, one hundred twenty thousand, twenty-one".