100131010021 has 32 divisors (see below), whose sum is σ = 131942304000. Its totient is φ = 73887593472.

The previous prime is 100131010009. The next prime is 100131010033. The reversal of 100131010021 is 120010131001.

It is an interprime number because it is at equal distance from previous prime (100131010009) and next prime (100131010033).

It is not a de Polignac number, because 100131010021 - 2⁵ = 100131009989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100131010121) 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, 697986 + ... + 829123.

It is an arithmetic number, because the mean of its divisors is an integer number (4123197000).

Almost surely, 2^100131010021 is an apocalyptic number.

It is an amenable number.

100131010021 is a deficient number, since it is larger than the sum of its proper divisors (31811293979).

100131010021 is a wasteful number, since it uses less digits than its factorization.

100131010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527181.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 100131010021 its reverse (120010131001), we get a palindrome (220141141022).

The spelling of 100131010021 in words is "one hundred billion, one hundred thirty-one million, ten thousand, twenty-one".