12403134403 has 24 divisors (see below), whose sum is σ = 14071740480. Its totient is φ = 10918604400.

The previous prime is 12403134391. The next prime is 12403134407. The reversal of 12403134403 is 30443130421.

It is not a de Polignac number, because 12403134403 - 2⁹ = 12403133891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12403134407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465348 + ... + 491278.

It is an arithmetic number, because the mean of its divisors is an integer number (586322520).

Almost surely, 2^12403134403 is an apocalyptic number.

12403134403 is a deficient number, since it is larger than the sum of its proper divisors (1668606077).

12403134403 is a wasteful number, since it uses less digits than its factorization.

12403134403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26079 (or 26068 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12403134403 its reverse (30443130421), we get a palindrome (42846264824).

The spelling of 12403134403 in words is "twelve billion, four hundred three million, one hundred thirty-four thousand, four hundred three".