30023071979 has 2 divisors, whose sum is σ = 30023071980. Its totient is φ = 30023071978.

The previous prime is 30023071973. The next prime is 30023072029. The reversal of 30023071979 is 97917032003.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30023071979 - 2⁸ = 30023071723 is a prime.

It is not a weakly prime, because it can be changed into another prime (30023071973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15011535989 + 15011535990.

It is an arithmetic number, because the mean of its divisors is an integer number (15011535990).

Almost surely, 2^30023071979 is an apocalyptic number.

30023071979 is a deficient number, since it is larger than the sum of its proper divisors (1).

30023071979 is an equidigital number, since it uses as much as digits as its factorization.

30023071979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 41.

The spelling of 30023071979 in words is "thirty billion, twenty-three million, seventy-one thousand, nine hundred seventy-nine".