12231113652 has 18 divisors (see below), whose sum is σ = 30917537378. Its totient is φ = 4077037872.

The previous prime is 12231113647. The next prime is 12231113663. The reversal of 12231113652 is 25631113221.

12231113652 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 1 + 1 + 1 + 3 + 652 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7183579536 + 5047534116 = 84756^2 + 71046^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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, 169876543 + ... + 169876614.

Almost surely, 2^12231113652 is an apocalyptic number.

12231113652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12231113652 is an abundant number, since it is smaller than the sum of its proper divisors (18686423726).

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

12231113652 is a wasteful number, since it uses less digits than its factorization.

12231113652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339753167 (or 339753162 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

Adding to 12231113652 its reverse (25631113221), we get a palindrome (37862226873).

The spelling of 12231113652 in words is "twelve billion, two hundred thirty-one million, one hundred thirteen thousand, six hundred fifty-two".