30201320312121 has 64 divisors (see below), whose sum is σ = 47679628492800. Its totient is φ = 16637738777856.

The previous prime is 30201320312117. The next prime is 30201320312143. The reversal of 30201320312121 is 12121302310203.

It is not a de Polignac number, because 30201320312121 - 2² = 30201320312117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30201320312021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1848410970 + ... + 1848427308.

It is an arithmetic number, because the mean of its divisors is an integer number (744994195200).

Almost surely, 2^{30201320312121} is an apocalyptic number.

It is an amenable number.

30201320312121 is a deficient number, since it is larger than the sum of its proper divisors (17478308180679).

30201320312121 is a wasteful number, since it uses less digits than its factorization.

30201320312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20758.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 30201320312121 its reverse (12121302310203), we get a palindrome (42322622622324).

The spelling of 30201320312121 in words is "thirty trillion, two hundred one billion, three hundred twenty million, three hundred twelve thousand, one hundred twenty-one".