23031030121 has 16 divisors (see below), whose sum is σ = 25279027200. Its totient is φ = 20809126800.

The previous prime is 23031030089. The next prime is 23031030149. The reversal of 23031030121 is 12103013032.

It is not a de Polignac number, because 23031030121 - 2⁵ = 23031030089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23031030095 and 23031030104.

It is not an unprimeable number, because it can be changed into a prime (23031030821) 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, 1239820 + ... + 1258258.

It is an arithmetic number, because the mean of its divisors is an integer number (1579939200).

Almost surely, 2^23031030121 is an apocalyptic number.

It is an amenable number.

23031030121 is a deficient number, since it is larger than the sum of its proper divisors (2247997079).

23031030121 is a wasteful number, since it uses less digits than its factorization.

23031030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19140.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23031030121 its reverse (12103013032), we get a palindrome (35134043153).

The spelling of 23031030121 in words is "twenty-three billion, thirty-one million, thirty thousand, one hundred twenty-one".