13033031403 has 16 divisors (see below), whose sum is σ = 19863845120. Its totient is φ = 7445951136.

The previous prime is 13033031387. The next prime is 13033031411. The reversal of 13033031403 is 30413033031.

It is not a de Polignac number, because 13033031403 - 2⁴ = 13033031387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13033031403.

It is not an unprimeable number, because it can be changed into a prime (13033031003) 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, 49428 + ... + 168846.

It is an arithmetic number, because the mean of its divisors is an integer number (1241490320).

Almost surely, 2^13033031403 is an apocalyptic number.

13033031403 is a deficient number, since it is larger than the sum of its proper divisors (6830813717).

13033031403 is a wasteful number, since it uses less digits than its factorization.

13033031403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124626.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 13033031403 its reverse (30413033031), we get a palindrome (43446064434).

The spelling of 13033031403 in words is "thirteen billion, thirty-three million, thirty-one thousand, four hundred three".