13403231403 has 16 divisors (see below), whose sum is σ = 18538598400. Its totient is φ = 8607193920.

The previous prime is 13403231383. The next prime is 13403231411. The reversal of 13403231403 is 30413230431.

It is not a de Polignac number, because 13403231403 - 2¹⁸ = 13402969259 is a prime.

It is a super-2 number, since 2×13403231403² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13403231453) 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, 679963 + ... + 699396.

It is an arithmetic number, because the mean of its divisors is an integer number (1158662400).

Almost surely, 2^13403231403 is an apocalyptic number.

13403231403 is a deficient number, since it is larger than the sum of its proper divisors (5135366997).

13403231403 is a wasteful number, since it uses less digits than its factorization.

13403231403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379482.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13403231403 its reverse (30413230431), we get a palindrome (43816461834).

The spelling of 13403231403 in words is "thirteen billion, four hundred three million, two hundred thirty-one thousand, four hundred three".