23965213123 has 16 divisors (see below), whose sum is σ = 25767922176. Its totient is φ = 22207050880.

The previous prime is 23965213117. The next prime is 23965213163. The reversal of 23965213123 is 32131256932.

It is a cyclic number.

It is not a de Polignac number, because 23965213123 - 2¹³ = 23965204931 is a prime.

It is a super-2 number, since 2×23965213123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23965213163) 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, 883440 + ... + 910162.

It is an arithmetic number, because the mean of its divisors is an integer number (1610495136).

Almost surely, 2^23965213123 is an apocalyptic number.

23965213123 is a deficient number, since it is larger than the sum of its proper divisors (1802709053).

23965213123 is a wasteful number, since it uses less digits than its factorization.

23965213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27554.

The product of its digits is 58320, while the sum is 37.

The spelling of 23965213123 in words is "twenty-three billion, nine hundred sixty-five million, two hundred thirteen thousand, one hundred twenty-three".