202312112013 has 24 divisors (see below), whose sum is σ = 318820696896. Its totient is φ = 122603457600.

The previous prime is 202312111997. The next prime is 202312112027. The reversal of 202312112013 is 310211213202.

202312112013 is a `hidden beast` number, since 20 + 231 + 211 + 201 + 3 = 666.

It is not a de Polignac number, because 202312112013 - 2⁴ = 202312111997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202312112113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1252128 + ... + 1404438.

It is an arithmetic number, because the mean of its divisors is an integer number (13284195704).

Almost surely, 2^202312112013 is an apocalyptic number.

It is an amenable number.

202312112013 is a deficient number, since it is larger than the sum of its proper divisors (116508584883).

202312112013 is a wasteful number, since it uses less digits than its factorization.

202312112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165745 (or 165742 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 202312112013 its reverse (310211213202), we get a palindrome (512523325215).

The spelling of 202312112013 in words is "two hundred two billion, three hundred twelve million, one hundred twelve thousand, thirteen".