113111001979 has 2 divisors, whose sum is σ = 113111001980. Its totient is φ = 113111001978.

The previous prime is 113111001943. The next prime is 113111002051. The reversal of 113111001979 is 979100111311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113111001979 - 2¹¹ = 113110999931 is a prime.

It is not a weakly prime, because it can be changed into another prime (113111001079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56555500989 + 56555500990.

It is an arithmetic number, because the mean of its divisors is an integer number (56555500990).

Almost surely, 2^113111001979 is an apocalyptic number.

113111001979 is a deficient number, since it is larger than the sum of its proper divisors (1).

113111001979 is an equidigital number, since it uses as much as digits as its factorization.

113111001979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 34.

The spelling of 113111001979 in words is "one hundred thirteen billion, one hundred eleven million, one thousand, nine hundred seventy-nine".