10117121639 has 2 divisors, whose sum is σ = 10117121640. Its totient is φ = 10117121638.

The previous prime is 10117121579. The next prime is 10117121669. The reversal of 10117121639 is 93612171101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10117121639 - 2²⁰ = 10116073063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10117121669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5058560819 + 5058560820.

It is an arithmetic number, because the mean of its divisors is an integer number (5058560820).

Almost surely, 2^10117121639 is an apocalyptic number.

10117121639 is a deficient number, since it is larger than the sum of its proper divisors (1).

10117121639 is an equidigital number, since it uses as much as digits as its factorization.

10117121639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

The spelling of 10117121639 in words is "ten billion, one hundred seventeen million, one hundred twenty-one thousand, six hundred thirty-nine".