1111105979 has 2 divisors, whose sum is σ = 1111105980. Its totient is φ = 1111105978.

The previous prime is 1111105973. The next prime is 1111106021. The reversal of 1111105979 is 9795011111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111105979 - 2¹² = 1111101883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111105973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555552989 + 555552990.

It is an arithmetic number, because the mean of its divisors is an integer number (555552990).

Almost surely, 2^1111105979 is an apocalyptic number.

1111105979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111105979 is an equidigital number, since it uses as much as digits as its factorization.

1111105979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 35.

The square root of 1111105979 is about 33333.2563515778. The cubic root of 1111105979 is about 1035.7425739826.

The spelling of 1111105979 in words is "one billion, one hundred eleven million, one hundred five thousand, nine hundred seventy-nine".