12403304536 has 48 divisors (see below), whose sum is σ = 27075216600. Its totient is φ = 5311361664.

The previous prime is 12403304531. The next prime is 12403304609. The reversal of 12403304536 is 63540330421.

It is a junction number, because it is equal to n+sod(n) for n = 12403304498 and 12403304507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403304531) 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, 493015 + ... + 517561.

Almost surely, 2^12403304536 is an apocalyptic number.

It is an amenable number.

12403304536 is an abundant number, since it is smaller than the sum of its proper divisors (14671912064).

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

12403304536 is a wasteful number, since it uses less digits than its factorization.

12403304536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25856 (or 25845 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 12403304536 its reverse (63540330421), we get a palindrome (75943634957).

The spelling of 12403304536 in words is "twelve billion, four hundred three million, three hundred four thousand, five hundred thirty-six".