121312322179 has 2 divisors, whose sum is σ = 121312322180. Its totient is φ = 121312322178.

The previous prime is 121312322171. The next prime is 121312322249. The reversal of 121312322179 is 971223213121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121312322179 - 2³ = 121312322171 is a prime.

It is a super-2 number, since 2×121312322179² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121312322171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60656161089 + 60656161090.

It is an arithmetic number, because the mean of its divisors is an integer number (60656161090).

Almost surely, 2^121312322179 is an apocalyptic number.

121312322179 is a deficient number, since it is larger than the sum of its proper divisors (1).

121312322179 is an equidigital number, since it uses as much as digits as its factorization.

121312322179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The spelling of 121312322179 in words is "one hundred twenty-one billion, three hundred twelve million, three hundred twenty-two thousand, one hundred seventy-nine".