12117000979 has 2 divisors, whose sum is σ = 12117000980. Its totient is φ = 12117000978.

The previous prime is 12117000953. The next prime is 12117000983. The reversal of 12117000979 is 97900071121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12117000979 - 2⁵ = 12117000947 is a prime.

It is not a weakly prime, because it can be changed into another prime (12117000949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6058500489 + 6058500490.

It is an arithmetic number, because the mean of its divisors is an integer number (6058500490).

Almost surely, 2^12117000979 is an apocalyptic number.

12117000979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12117000979 is an equidigital number, since it uses as much as digits as its factorization.

12117000979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 37.

The spelling of 12117000979 in words is "twelve billion, one hundred seventeen million, nine hundred seventy-nine", and thus it is an aban number.