12403304403 has 16 divisors (see below), whose sum is σ = 19044554496. Its totient is φ = 7033497120.

The previous prime is 12403304359. The next prime is 12403304411. The reversal of 12403304403 is 30440330421.

It is not a de Polignac number, because 12403304403 - 2¹² = 12403300307 is a prime.

It is a super-2 number, since 2×12403304403² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12403304413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2251576 + ... + 2257077.

It is an arithmetic number, because the mean of its divisors is an integer number (1190284656).

Almost surely, 2^12403304403 is an apocalyptic number.

12403304403 is a deficient number, since it is larger than the sum of its proper divisors (6641250093).

12403304403 is a wasteful number, since it uses less digits than its factorization.

12403304403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508794.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 12403304403 its reverse (30440330421), we get a palindrome (42843634824).

The spelling of 12403304403 in words is "twelve billion, four hundred three million, three hundred four thousand, four hundred three".