431344013213 has 16 divisors (see below), whose sum is σ = 451755190656. Its totient is φ = 411072076800.

The previous prime is 431344013201. The next prime is 431344013237. The reversal of 431344013213 is 312310443134.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 431344013213 - 2³⁴ = 414164144029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431344013263) 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, 18580013 + ... + 18603213.

It is an arithmetic number, because the mean of its divisors is an integer number (28234699416).

Almost surely, 2^431344013213 is an apocalyptic number.

It is an amenable number.

431344013213 is a deficient number, since it is larger than the sum of its proper divisors (20411177443).

431344013213 is a wasteful number, since it uses less digits than its factorization.

431344013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26164.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 431344013213 its reverse (312310443134), we get a palindrome (743654456347).

The spelling of 431344013213 in words is "four hundred thirty-one billion, three hundred forty-four million, thirteen thousand, two hundred thirteen".