30013111213021 has 6 divisors (see below), whose sum is σ = 31374764652350. Its totient is φ = 28708193333688.

The previous prime is 30013111212989. The next prime is 30013111213049. The reversal of 30013111213021 is 12031211131003.

It can be written as a sum of positive squares in only one way, i.e., 23191794797796 + 6821316415225 = 4815786^2 + 2611765^2 .

It is not a de Polignac number, because 30013111213021 - 2⁵ = 30013111212989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30013111213021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30013111210021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28367779446 + ... + 28367780503.

Almost surely, 2^{30013111213021} is an apocalyptic number.

It is an amenable number.

30013111213021 is a deficient number, since it is larger than the sum of its proper divisors (1361653439329).

30013111213021 is an equidigital number, since it uses as much as digits as its factorization.

30013111213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56735559995 (or 56735559972 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 30013111213021 its reverse (12031211131003), we get a palindrome (42044322344024).

The spelling of 30013111213021 in words is "thirty trillion, thirteen billion, one hundred eleven million, two hundred thirteen thousand, twenty-one".