12013312113 has 24 divisors (see below), whose sum is σ = 18933732480. Its totient is φ = 7279385760.

The previous prime is 12013312067. The next prime is 12013312127. The reversal of 12013312113 is 31121331021.

12013312113 is a `hidden beast` number, since 120 + 1 + 331 + 211 + 3 = 666.

It is not a de Polignac number, because 12013312113 - 2⁹ = 12013311601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12013312193) 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, 751320 + ... + 767142.

It is an arithmetic number, because the mean of its divisors is an integer number (788905520).

Almost surely, 2^12013312113 is an apocalyptic number.

It is an amenable number.

12013312113 is a deficient number, since it is larger than the sum of its proper divisors (6920420367).

12013312113 is a wasteful number, since it uses less digits than its factorization.

12013312113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23509 (or 23506 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12013312113 its reverse (31121331021), we get a palindrome (43134643134).

The spelling of 12013312113 in words is "twelve billion, thirteen million, three hundred twelve thousand, one hundred thirteen".