30113312021 has 32 divisors (see below), whose sum is σ = 34765584000. Its totient is φ = 25849974528.

The previous prime is 30113312017. The next prime is 30113312023. The reversal of 30113312021 is 12021331103.

It is a cyclic number.

It is not a de Polignac number, because 30113312021 - 2² = 30113312017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30113312023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15577571 + ... + 15579503.

It is an arithmetic number, because the mean of its divisors is an integer number (1086424500).

Almost surely, 2^30113312021 is an apocalyptic number.

It is an amenable number.

30113312021 is a deficient number, since it is larger than the sum of its proper divisors (4652271979).

30113312021 is a wasteful number, since it uses less digits than its factorization.

30113312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30113312021 its reverse (12021331103), we get a palindrome (42134643124).

The spelling of 30113312021 in words is "thirty billion, one hundred thirteen million, three hundred twelve thousand, twenty-one".