121030020179 has 2 divisors, whose sum is σ = 121030020180. Its totient is φ = 121030020178.

The previous prime is 121030020149. The next prime is 121030020227. The reversal of 121030020179 is 971020030121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121030020179 - 2¹² = 121030016083 is a prime.

It is not a weakly prime, because it can be changed into another prime (121030020149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60515010089 + 60515010090.

It is an arithmetic number, because the mean of its divisors is an integer number (60515010090).

Almost surely, 2^121030020179 is an apocalyptic number.

121030020179 is a deficient number, since it is larger than the sum of its proper divisors (1).

121030020179 is an equidigital number, since it uses as much as digits as its factorization.

121030020179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The spelling of 121030020179 in words is "one hundred twenty-one billion, thirty million, twenty thousand, one hundred seventy-nine".