30013231979 has 2 divisors, whose sum is σ = 30013231980. Its totient is φ = 30013231978.

The previous prime is 30013231933. The next prime is 30013232023. The reversal of 30013231979 is 97913231003.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30013231979 - 2²⁰ = 30012183403 is a prime.

It is not a weakly prime, because it can be changed into another prime (30013231279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006615989 + 15006615990.

It is an arithmetic number, because the mean of its divisors is an integer number (15006615990).

Almost surely, 2^30013231979 is an apocalyptic number.

30013231979 is a deficient number, since it is larger than the sum of its proper divisors (1).

30013231979 is an equidigital number, since it uses as much as digits as its factorization.

30013231979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 38.

The spelling of 30013231979 in words is "thirty billion, thirteen million, two hundred thirty-one thousand, nine hundred seventy-nine".