131002200021 has 32 divisors (see below), whose sum is σ = 227238156288. Its totient is φ = 65094258240.

The previous prime is 131002200011. The next prime is 131002200023. The reversal of 131002200021 is 120002200131.

It is not a de Polignac number, because 131002200021 - 2⁷ = 131002199893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131002200023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12323146 + ... + 12333771.

It is an arithmetic number, because the mean of its divisors is an integer number (7101192384).

Almost surely, 2^131002200021 is an apocalyptic number.

131002200021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131002200021 is a deficient number, since it is larger than the sum of its proper divisors (96235956267).

131002200021 is a wasteful number, since it uses less digits than its factorization.

131002200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24656961.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 131002200021 its reverse (120002200131), we get a palindrome (251004400152).

The spelling of 131002200021 in words is "one hundred thirty-one billion, two million, two hundred thousand, twenty-one".