13000431 has 16 divisors (see below), whose sum is σ = 17931744. Its totient is φ = 8371584.

The previous prime is 13000411. The next prime is 13000457. The reversal of 13000431 is 13400031.

It is not a de Polignac number, because 13000431 - 2⁶ = 13000367 is a prime.

It is a super-2 number, since 2×13000431² = 338022412371522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000411) 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, 18865 + ... + 19541.

It is an arithmetic number, because the mean of its divisors is an integer number (1120734).

Almost surely, 2^13000431 is an apocalyptic number.

13000431 is a deficient number, since it is larger than the sum of its proper divisors (4931313).

13000431 is a wasteful number, since it uses less digits than its factorization.

13000431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 13000431 is about 3605.6110439147. The cubic root of 13000431 is about 235.1360672696.

Adding to 13000431 its reverse (13400031), we get a palindrome (26400462).

It can be divided in two parts, 13000 and 431, that added together give a palindrome (13431).

The spelling of 13000431 in words is "thirteen million, four hundred thirty-one", and thus it is an aban number.