111339239839 has 2 divisors, whose sum is σ = 111339239840. Its totient is φ = 111339239838.

The previous prime is 111339239831. The next prime is 111339239861. The reversal of 111339239839 is 938932933111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111339239839 - 2³ = 111339239831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111339239831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55669619919 + 55669619920.

It is an arithmetic number, because the mean of its divisors is an integer number (55669619920).

Almost surely, 2^111339239839 is an apocalyptic number.

111339239839 is a deficient number, since it is larger than the sum of its proper divisors (1).

111339239839 is an equidigital number, since it uses as much as digits as its factorization.

111339239839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 944784, while the sum is 52.

The spelling of 111339239839 in words is "one hundred eleven billion, three hundred thirty-nine million, two hundred thirty-nine thousand, eight hundred thirty-nine".