12113012132 has 18 divisors (see below), whose sum is σ = 22953800898. Its totient is φ = 5590620672.

The previous prime is 12113012099. The next prime is 12113012207. The reversal of 12113012132 is 23121031121.

It can be written as a sum of positive squares in 3 ways, for example, as 797158756 + 11315853376 = 28234^2 + 106376^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12113012132.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8958653 + ... + 8960004.

It is an arithmetic number, because the mean of its divisors is an integer number (1275211161).

Almost surely, 2^12113012132 is an apocalyptic number.

It is an amenable number.

12113012132 is a deficient number, since it is larger than the sum of its proper divisors (10840788766).

12113012132 is a wasteful number, since it uses less digits than its factorization.

12113012132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17918687 (or 17918672 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12113012132 its reverse (23121031121), we get a palindrome (35234043253).

The spelling of 12113012132 in words is "twelve billion, one hundred thirteen million, twelve thousand, one hundred thirty-two".