23011120231 has 16 divisors (see below), whose sum is σ = 25920718848. Its totient is φ = 20238213600.

The previous prime is 23011120211. The next prime is 23011120273. The reversal of 23011120231 is 13202111032.

It is not a de Polignac number, because 23011120231 - 2⁵ = 23011120199 is a prime.

It is a super-2 number, since 2×23011120231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011120211) 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 15 ways as a sum of consecutive naturals, for example, 1387470 + ... + 1403956.

It is an arithmetic number, because the mean of its divisors is an integer number (1620044928).

Almost surely, 2^23011120231 is an apocalyptic number.

23011120231 is a deficient number, since it is larger than the sum of its proper divisors (2909598617).

23011120231 is a wasteful number, since it uses less digits than its factorization.

23011120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20622.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23011120231 its reverse (13202111032), we get a palindrome (36213231263).

The spelling of 23011120231 in words is "twenty-three billion, eleven million, one hundred twenty thousand, two hundred thirty-one".