23123001231 has 80 divisors (see below), whose sum is σ = 39994352640. Its totient is φ = 13157925120.

The previous prime is 23123001229. The next prime is 23123001233. The reversal of 23123001231 is 13210032132.

It is an interprime number because it is at equal distance from previous prime (23123001229) and next prime (23123001233).

It is not a de Polignac number, because 23123001231 - 2¹ = 23123001229 is a prime.

It is a super-2 number, since 2×23123001231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123001233) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7253820 + ... + 7257006.

It is an arithmetic number, because the mean of its divisors is an integer number (499929408).

Almost surely, 2^23123001231 is an apocalyptic number.

23123001231 is a deficient number, since it is larger than the sum of its proper divisors (16871351409).

23123001231 is a wasteful number, since it uses less digits than its factorization.

23123001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706 (or 3697 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23123001231 its reverse (13210032132), we get a palindrome (36333033363).

The spelling of 23123001231 in words is "twenty-three billion, one hundred twenty-three million, one thousand, two hundred thirty-one".