431345313 has 24 divisors (see below), whose sum is σ = 712670400. Its totient is φ = 246272544.

The previous prime is 431345309. The next prime is 431345339. The reversal of 431345313 is 313543134.

431345313 is a `hidden beast` number, since 4 + 3 + 1 + 345 + 313 = 666.

It is not a de Polignac number, because 431345313 - 2² = 431345309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431345303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99883 + ... + 104111.

It is an arithmetic number, because the mean of its divisors is an integer number (29694600).

Almost surely, 2^431345313 is an apocalyptic number.

It is an amenable number.

431345313 is a deficient number, since it is larger than the sum of its proper divisors (281325087).

431345313 is a wasteful number, since it uses less digits than its factorization.

431345313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861 (or 5858 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 431345313 is about 20768.8543978718. The cubic root of 431345313 is about 755.5705600450.

Adding to 431345313 its reverse (313543134), we get a palindrome (744888447).

It can be divided in two parts, 431 and 345313, that added together give a square (345744 = 588²).

The spelling of 431345313 in words is "four hundred thirty-one million, three hundred forty-five thousand, three hundred thirteen".