101399238739 has 2 divisors, whose sum is σ = 101399238740. Its totient is φ = 101399238738.

The previous prime is 101399238727. The next prime is 101399238799. The reversal of 101399238739 is 937832993101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101399238739 - 2²⁵ = 101365684307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101399238739.

It is not a weakly prime, because it can be changed into another prime (101399238709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50699619369 + 50699619370.

It is an arithmetic number, because the mean of its divisors is an integer number (50699619370).

Almost surely, 2^101399238739 is an apocalyptic number.

101399238739 is a deficient number, since it is larger than the sum of its proper divisors (1).

101399238739 is an equidigital number, since it uses as much as digits as its factorization.

101399238739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The spelling of 101399238739 in words is "one hundred one billion, three hundred ninety-nine million, two hundred thirty-eight thousand, seven hundred thirty-nine".