111123202279 has 2 divisors, whose sum is σ = 111123202280. Its totient is φ = 111123202278.

The previous prime is 111123202273. The next prime is 111123202319. The reversal of 111123202279 is 972202321111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111123202279 - 2⁵ = 111123202247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111123202279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111123202273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561601139 + 55561601140.

It is an arithmetic number, because the mean of its divisors is an integer number (55561601140).

Almost surely, 2^111123202279 is an apocalyptic number.

111123202279 is a deficient number, since it is larger than the sum of its proper divisors (1).

111123202279 is an equidigital number, since it uses as much as digits as its factorization.

111123202279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 111123202279 in words is "one hundred eleven billion, one hundred twenty-three million, two hundred two thousand, two hundred seventy-nine".