100645444931 has 2 divisors, whose sum is σ = 100645444932. Its totient is φ = 100645444930.

The previous prime is 100645444859. The next prime is 100645444943. The reversal of 100645444931 is 139444546001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100645444931 - 2¹⁸ = 100645182787 is a prime.

It is a super-2 number, since 2×100645444931² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100645444951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50322722465 + 50322722466.

It is an arithmetic number, because the mean of its divisors is an integer number (50322722466).

Almost surely, 2^100645444931 is an apocalyptic number.

100645444931 is a deficient number, since it is larger than the sum of its proper divisors (1).

100645444931 is an equidigital number, since it uses as much as digits as its factorization.

100645444931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 100645444931 in words is "one hundred billion, six hundred forty-five million, four hundred forty-four thousand, nine hundred thirty-one".