30213300021 has 4 divisors (see below), whose sum is σ = 40284400032. Its totient is φ = 20142200012.

The previous prime is 30213300017. The next prime is 30213300023. The reversal of 30213300021 is 12000331203.

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 30213300021 - 2² = 30213300017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213300023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5035550001 + ... + 5035550006.

It is an arithmetic number, because the mean of its divisors is an integer number (10071100008).

Almost surely, 2^30213300021 is an apocalyptic number.

It is an amenable number.

30213300021 is a deficient number, since it is larger than the sum of its proper divisors (10071100011).

30213300021 is a wasteful number, since it uses less digits than its factorization.

30213300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10071100010.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30213300021 its reverse (12000331203), we get a palindrome (42213631224).

The spelling of 30213300021 in words is "thirty billion, two hundred thirteen million, three hundred thousand, twenty-one".