431312313 has 8 divisors (see below), whose sum is σ = 576533248. Its totient is φ = 286816464.

The previous prime is 431312311. The next prime is 431312339. The reversal of 431312313 is 313213134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431312313 - 2¹ = 431312311 is a prime.

It is a super-2 number, since 2×431312313² = 372060622690819938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431312313.

It is not an unprimeable number, because it can be changed into a prime (431312311) 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 7 ways as a sum of consecutive naturals, for example, 179881 + ... + 182262.

It is an arithmetic number, because the mean of its divisors is an integer number (72066656).

Almost surely, 2^431312313 is an apocalyptic number.

It is an amenable number.

431312313 is a deficient number, since it is larger than the sum of its proper divisors (145220935).

431312313 is a wasteful number, since it uses less digits than its factorization.

431312313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362543.

The product of its digits is 648, while the sum is 21.

The square root of 431312313 is about 20768.0599238350. The cubic root of 431312313 is about 755.5512912878.

Adding to 431312313 its reverse (313213134), we get a palindrome (744525447).

The spelling of 431312313 in words is "four hundred thirty-one million, three hundred twelve thousand, three hundred thirteen".