111110999878939 has 2 divisors, whose sum is σ = 111110999878940. Its totient is φ = 111110999878938.

The previous prime is 111110999878909. The next prime is 111110999878987. The reversal of 111110999878939 is 939878999011111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111110999878939 - 2⁷ = 111110999878811 is a prime.

It is not a weakly prime, because it can be changed into another prime (111110999878909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555499939469 + 55555499939470.

It is an arithmetic number, because the mean of its divisors is an integer number (55555499939470).

Almost surely, 2^{111110999878939} is an apocalyptic number.

111110999878939 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110999878939 is an equidigital number, since it uses as much as digits as its factorization.

111110999878939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79361856, while the sum is 76.

The spelling of 111110999878939 in words is "one hundred eleven trillion, one hundred ten billion, nine hundred ninety-nine million, eight hundred seventy-eight thousand, nine hundred thirty-nine".