111012020111879 has 2 divisors, whose sum is σ = 111012020111880. Its totient is φ = 111012020111878.

The previous prime is 111012020111813. The next prime is 111012020111903. The reversal of 111012020111879 is 978111020210111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111012020111879 - 2³² = 111007725144583 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012020111779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506010055939 + 55506010055940.

It is an arithmetic number, because the mean of its divisors is an integer number (55506010055940).

Almost surely, 2^{111012020111879} is an apocalyptic number.

111012020111879 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012020111879 is an equidigital number, since it uses as much as digits as its factorization.

111012020111879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 35.

The spelling of 111012020111879 in words is "one hundred eleven trillion, twelve billion, twenty million, one hundred eleven thousand, eight hundred seventy-nine".