111320031239 has 2 divisors, whose sum is σ = 111320031240. Its totient is φ = 111320031238.

The previous prime is 111320031217. The next prime is 111320031271. The reversal of 111320031239 is 932130023111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111320031239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111320031289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55660015619 + 55660015620.

It is an arithmetic number, because the mean of its divisors is an integer number (55660015620).

Almost surely, 2^111320031239 is an apocalyptic number.

111320031239 is a deficient number, since it is larger than the sum of its proper divisors (1).

111320031239 is an equidigital number, since it uses as much as digits as its factorization.

111320031239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 111320031239 in words is "one hundred eleven billion, three hundred twenty million, thirty-one thousand, two hundred thirty-nine".