12131113302 has 96 divisors (see below), whose sum is σ = 33532012800. Its totient is φ = 3077645760.

The previous prime is 12131113243. The next prime is 12131113327. The reversal of 12131113302 is 20331113121.

12131113302 is a `hidden beast` number, since 1 + 21 + 311 + 1 + 330 + 2 = 666.

It is a super-2 number, since 2×12131113302² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42177 + ... + 161372.

It is an arithmetic number, because the mean of its divisors is an integer number (349291800).

Almost surely, 2^12131113302 is an apocalyptic number.

12131113302 is an abundant number, since it is smaller than the sum of its proper divisors (21400899498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12131113302 is a wasteful number, since it uses less digits than its factorization.

12131113302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203618 (or 203615 counting only the distinct ones).

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

Adding to 12131113302 its reverse (20331113121), we get a palindrome (32462226423).

The spelling of 12131113302 in words is "twelve billion, one hundred thirty-one million, one hundred thirteen thousand, three hundred two".