30031029923 has 2 divisors, whose sum is σ = 30031029924. Its totient is φ = 30031029922.

The previous prime is 30031029887. The next prime is 30031029979. The reversal of 30031029923 is 32992013003.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30031029923 - 2⁶ = 30031029859 is a prime.

It is a super-2 number, since 2×30031029923² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30031029923.

It is not a weakly prime, because it can be changed into another prime (30031025923) 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, 15015514961 + 15015514962.

It is an arithmetic number, because the mean of its divisors is an integer number (15015514962).

Almost surely, 2^30031029923 is an apocalyptic number.

30031029923 is a deficient number, since it is larger than the sum of its proper divisors (1).

30031029923 is an equidigital number, since it uses as much as digits as its factorization.

30031029923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 32.

The spelling of 30031029923 in words is "thirty billion, thirty-one million, twenty-nine thousand, nine hundred twenty-three".