13403313231 has 64 divisors (see below), whose sum is σ = 22489353216. Its totient is φ = 6897945600.

The previous prime is 13403313223. The next prime is 13403313269. The reversal of 13403313231 is 13231330431.

It is a happy number.

It is not a de Polignac number, because 13403313231 - 2³ = 13403313223 is a prime.

It is a super-2 number, since 2×13403313231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13403313271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14243221 + ... + 14244161.

It is an arithmetic number, because the mean of its divisors is an integer number (351396144).

Almost surely, 2^13403313231 is an apocalyptic number.

13403313231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13403313231 is a deficient number, since it is larger than the sum of its proper divisors (9086039985).

13403313231 is a wasteful number, since it uses less digits than its factorization.

13403313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 13403313231 its reverse (13231330431), we get a palindrome (26634643662).

The spelling of 13403313231 in words is "thirteen billion, four hundred three million, three hundred thirteen thousand, two hundred thirty-one".