13045378503 has 4 divisors (see below), whose sum is σ = 17393838008. Its totient is φ = 8696919000.

The previous prime is 13045378477. The next prime is 13045378529. The reversal of 13045378503 is 30587354031.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13045378477) and next prime (13045378529).

It is not a de Polignac number, because 13045378503 - 2¹⁰ = 13045377479 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 (13045378573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2174229748 + ... + 2174229753.

It is an arithmetic number, because the mean of its divisors is an integer number (4348459502).

Almost surely, 2^13045378503 is an apocalyptic number.

13045378503 is a deficient number, since it is larger than the sum of its proper divisors (4348459505).

13045378503 is an equidigital number, since it uses as much as digits as its factorization.

13045378503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4348459504.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 13045378503 in words is "thirteen billion, forty-five million, three hundred seventy-eight thousand, five hundred three".