23123230031 has 24 divisors (see below), whose sum is σ = 26009464320. Its totient is φ = 20386792800.

The previous prime is 23123229989. The next prime is 23123230049. The reversal of 23123230031 is 13003232132.

It is not a de Polignac number, because 23123230031 - 2⁶ = 23123229967 is a prime.

It is a super-2 number, since 2×23123230031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23123229985 and 23123230012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123230231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4982210 + ... + 4986848.

It is an arithmetic number, because the mean of its divisors is an integer number (1083727680).

Almost surely, 2^23123230031 is an apocalyptic number.

23123230031 is a deficient number, since it is larger than the sum of its proper divisors (2886234289).

23123230031 is a wasteful number, since it uses less digits than its factorization.

23123230031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23123230031 its reverse (13003232132), we get a palindrome (36126462163).

The spelling of 23123230031 in words is "twenty-three billion, one hundred twenty-three million, two hundred thirty thousand, thirty-one".