100120798931 has 2 divisors, whose sum is σ = 100120798932. Its totient is φ = 100120798930.

The previous prime is 100120798919. The next prime is 100120798951. The reversal of 100120798931 is 139897021001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100120798931 - 2⁶ = 100120798867 is a prime.

It is a super-2 number, since 2×100120798931² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100120798951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060399465 + 50060399466.

It is an arithmetic number, because the mean of its divisors is an integer number (50060399466).

Almost surely, 2^100120798931 is an apocalyptic number.

100120798931 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120798931 is an equidigital number, since it uses as much as digits as its factorization.

100120798931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 41.

The spelling of 100120798931 in words is "one hundred billion, one hundred twenty million, seven hundred ninety-eight thousand, nine hundred thirty-one".