111188881079 has 2 divisors, whose sum is σ = 111188881080. Its totient is φ = 111188881078.

The previous prime is 111188881051. The next prime is 111188881147. The reversal of 111188881079 is 970188881111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111188881079 - 2²⁴ = 111172103863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111188881079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111188881009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55594440539 + 55594440540.

It is an arithmetic number, because the mean of its divisors is an integer number (55594440540).

Almost surely, 2^111188881079 is an apocalyptic number.

111188881079 is a deficient number, since it is larger than the sum of its proper divisors (1).

111188881079 is an equidigital number, since it uses as much as digits as its factorization.

111188881079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 53.

The spelling of 111188881079 in words is "one hundred eleven billion, one hundred eighty-eight million, eight hundred eighty-one thousand, seventy-nine".