111123240439 has 2 divisors, whose sum is σ = 111123240440. Its totient is φ = 111123240438.

The previous prime is 111123240413. The next prime is 111123240443. The reversal of 111123240439 is 934042321111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111123240439 - 2²³ = 111114851831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111123240439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111123240479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561620219 + 55561620220.

It is an arithmetic number, because the mean of its divisors is an integer number (55561620220).

Almost surely, 2^111123240439 is an apocalyptic number.

111123240439 is a deficient number, since it is larger than the sum of its proper divisors (1).

111123240439 is an equidigital number, since it uses as much as digits as its factorization.

111123240439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 111123240439 in words is "one hundred eleven billion, one hundred twenty-three million, two hundred forty thousand, four hundred thirty-nine".