13033420503 has 16 divisors (see below), whose sum is σ = 17646156000. Its totient is φ = 8555627520.

The previous prime is 13033420501. The next prime is 13033420507. The reversal of 13033420503 is 30502433031.

It is a happy number.

It is not a de Polignac number, because 13033420503 - 2¹ = 13033420501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13033420501) 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, 36928 + ... + 165621.

It is an arithmetic number, because the mean of its divisors is an integer number (1102884750).

Almost surely, 2^13033420503 is an apocalyptic number.

13033420503 is a deficient number, since it is larger than the sum of its proper divisors (4612735497).

13033420503 is a wasteful number, since it uses less digits than its factorization.

13033420503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202882.

The product of its (nonzero) digits is 3240, while the sum is 24.

Adding to 13033420503 its reverse (30502433031), we get a palindrome (43535853534).

The spelling of 13033420503 in words is "thirteen billion, thirty-three million, four hundred twenty thousand, five hundred three".