30031029979 has 2 divisors, whose sum is σ = 30031029980. Its totient is φ = 30031029978.

The previous prime is 30031029923. The next prime is 30031029991. The reversal of 30031029979 is 97992013003.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30031029979 - 2⁹ = 30031029467 is a prime.

It is not a weakly prime, because it can be changed into another prime (30031029179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015514989 + 15015514990.

It is an arithmetic number, because the mean of its divisors is an integer number (15015514990).

Almost surely, 2^30031029979 is an apocalyptic number.

30031029979 is a deficient number, since it is larger than the sum of its proper divisors (1).

30031029979 is an equidigital number, since it uses as much as digits as its factorization.

30031029979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 43.

The spelling of 30031029979 in words is "thirty billion, thirty-one million, twenty-nine thousand, nine hundred seventy-nine".