12104011979 has 2 divisors, whose sum is σ = 12104011980. Its totient is φ = 12104011978.

The previous prime is 12104011961. The next prime is 12104011981. The reversal of 12104011979 is 97911040121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12104011979 - 2⁸ = 12104011723 is a prime.

Together with 12104011981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12104011999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052005989 + 6052005990.

It is an arithmetic number, because the mean of its divisors is an integer number (6052005990).

Almost surely, 2^12104011979 is an apocalyptic number.

12104011979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12104011979 is an equidigital number, since it uses as much as digits as its factorization.

12104011979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 12104011979 in words is "twelve billion, one hundred four million, eleven thousand, nine hundred seventy-nine".