13201431 has 4 divisors (see below), whose sum is σ = 17601912. Its totient is φ = 8800952.

The previous prime is 13201421. The next prime is 13201439. The reversal of 13201431 is 13410231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13410231 = 3 ⋅4470077.

It is a cyclic number.

It is not a de Polignac number, because 13201431 - 2¹¹ = 13199383 is a prime.

It is a super-2 number, since 2×13201431² = 348555560895522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13201431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200236 + ... + 2200241.

It is an arithmetic number, because the mean of its divisors is an integer number (4400478).

Almost surely, 2^13201431 is an apocalyptic number.

13201431 is a deficient number, since it is larger than the sum of its proper divisors (4400481).

13201431 is an equidigital number, since it uses as much as digits as its factorization.

13201431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400480.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13201431 is about 3633.3773544734. The cubic root of 13201431 is about 236.3416900056.

Adding to 13201431 its reverse (13410231), we get a palindrome (26611662).

The spelling of 13201431 in words is "thirteen million, two hundred one thousand, four hundred thirty-one".