12043015972 has 12 divisors (see below), whose sum is σ = 22696453276. Its totient is φ = 5558315040.

The previous prime is 12043015967. The next prime is 12043015973. The reversal of 12043015972 is 27951034021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5690288356 + 6352727616 = 75434^2 + 79704^2 .

It is not an unprimeable number, because it can be changed into a prime (12043015973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115798179 + ... + 115798282.

Almost surely, 2^12043015972 is an apocalyptic number.

It is an amenable number.

12043015972 is a deficient number, since it is larger than the sum of its proper divisors (10653437304).

12043015972 is a wasteful number, since it uses less digits than its factorization.

12043015972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231596478 (or 231596476 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

Adding to 12043015972 its reverse (27951034021), we get a palindrome (39994049993).

The spelling of 12043015972 in words is "twelve billion, forty-three million, fifteen thousand, nine hundred seventy-two".