30013213223021 has 4 divisors (see below), whose sum is σ = 34300815112032. Its totient is φ = 25725611334012.

The previous prime is 30013213223017. The next prime is 30013213223041. The reversal of 30013213223021 is 12032231231003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30013213223021 - 2² = 30013213223017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30013213223011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143800944495 + ... + 2143800944508.

It is an arithmetic number, because the mean of its divisors is an integer number (8575203778008).

Almost surely, 2^{30013213223021} is an apocalyptic number.

It is an amenable number.

30013213223021 is a deficient number, since it is larger than the sum of its proper divisors (4287601889011).

30013213223021 is an equidigital number, since it uses as much as digits as its factorization.

30013213223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287601889010.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30013213223021 its reverse (12032231231003), we get a palindrome (42045444454024).

The spelling of 30013213223021 in words is "thirty trillion, thirteen billion, two hundred thirteen million, two hundred twenty-three thousand, twenty-one".