13456404032503 has 8 divisors (see below), whose sum is σ = 13620004057440. Its totient is φ = 13293079662720.

The previous prime is 13456404032497. The next prime is 13456404032507. The reversal of 13456404032503 is 30523040465431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13456404032503 - 2⁹ = 13456404031991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13456404032507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68815563 + ... + 69010828.

It is an arithmetic number, because the mean of its divisors is an integer number (1702500507180).

Almost surely, 2^{13456404032503} is an apocalyptic number.

13456404032503 is a deficient number, since it is larger than the sum of its proper divisors (163600024937).

13456404032503 is a wasteful number, since it uses less digits than its factorization.

13456404032503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137827577.

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 13456404032503 its reverse (30523040465431), we get a palindrome (43979444497934).

The spelling of 13456404032503 in words is "thirteen trillion, four hundred fifty-six billion, four hundred four million, thirty-two thousand, five hundred three".