100440021239 has 2 divisors, whose sum is σ = 100440021240. Its totient is φ = 100440021238.

The previous prime is 100440021191. The next prime is 100440021247. The reversal of 100440021239 is 932120044001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100440021239 - 2²⁸ = 100171585783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100440021139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50220010619 + 50220010620.

It is an arithmetic number, because the mean of its divisors is an integer number (50220010620).

Almost surely, 2^100440021239 is an apocalyptic number.

100440021239 is a deficient number, since it is larger than the sum of its proper divisors (1).

100440021239 is an equidigital number, since it uses as much as digits as its factorization.

100440021239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 100440021239 in words is "one hundred billion, four hundred forty million, twenty-one thousand, two hundred thirty-nine".