30201320123 has 16 divisors (see below), whose sum is σ = 33582533376. Its totient is φ = 26971729920.

The previous prime is 30201320111. The next prime is 30201320159. The reversal of 30201320123 is 32102310203.

It is a cyclic number.

It is not a de Polignac number, because 30201320123 - 2²⁰ = 30200271547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30201320923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053211 + ... + 2067867.

It is an arithmetic number, because the mean of its divisors is an integer number (2098908336).

Almost surely, 2^30201320123 is an apocalyptic number.

30201320123 is a deficient number, since it is larger than the sum of its proper divisors (3381213253).

30201320123 is a wasteful number, since it uses less digits than its factorization.

30201320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19814.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30201320123 its reverse (32102310203), we get a palindrome (62303630326).

The spelling of 30201320123 in words is "thirty billion, two hundred one million, three hundred twenty thousand, one hundred twenty-three".