13033431 has 12 divisors (see below), whose sum is σ = 18880680. Its totient is φ = 8663760.

The previous prime is 13033421. The next prime is 13033439. The reversal of 13033431 is 13433031.

It is not a de Polignac number, because 13033431 - 2¹¹ = 13031383 is a prime.

It is a super-2 number, since 2×13033431² = 339740647263522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13033439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1501 + ... + 5321.

It is an arithmetic number, because the mean of its divisors is an integer number (1573390).

Almost surely, 2^13033431 is an apocalyptic number.

13033431 is a deficient number, since it is larger than the sum of its proper divisors (5847249).

13033431 is a wasteful number, since it uses less digits than its factorization.

13033431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4206 (or 4203 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 13033431 is about 3610.1843443237. The cubic root of 13033431 is about 235.3348538575.

Adding to 13033431 its reverse (13433031), we get a palindrome (26466462).

The spelling of 13033431 in words is "thirteen million, thirty-three thousand, four hundred thirty-one".