12040365513 has 12 divisors (see below), whose sum is σ = 17645935664. Its totient is φ = 7297191000.

The previous prime is 12040365509. The next prime is 12040365517. The reversal of 12040365513 is 31556304021.

It is an interprime number because it is at equal distance from previous prime (12040365509) and next prime (12040365517).

It is not a de Polignac number, because 12040365513 - 2² = 12040365509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12040365517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16584163 + ... + 16584888.

Almost surely, 2^12040365513 is an apocalyptic number.

It is an amenable number.

12040365513 is a deficient number, since it is larger than the sum of its proper divisors (5605570151).

12040365513 is a wasteful number, since it uses less digits than its factorization.

12040365513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33169076 (or 33169065 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 12040365513 its reverse (31556304021), we get a palindrome (43596669534).

The spelling of 12040365513 in words is "twelve billion, forty million, three hundred sixty-five thousand, five hundred thirteen".