313430431 has 4 divisors (see below), whose sum is σ = 313497000. Its totient is φ = 313363864.

The previous prime is 313430417. The next prime is 313430437. The reversal of 313430431 is 134034313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313430431 - 2⁵ = 313430399 is a prime.

It is a super-2 number, since 2×313430431² = 196477270153691522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313430437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25636 + ... + 35833.

It is an arithmetic number, because the mean of its divisors is an integer number (78374250).

Almost surely, 2^313430431 is an apocalyptic number.

313430431 is a deficient number, since it is larger than the sum of its proper divisors (66569).

313430431 is an equidigital number, since it uses as much as digits as its factorization.

313430431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66568.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 313430431 is about 17703.9665329553. The cubic root of 313430431 is about 679.2772243889.

Adding to 313430431 its reverse (134034313), we get a palindrome (447464744).

The spelling of 313430431 in words is "three hundred thirteen million, four hundred thirty thousand, four hundred thirty-one".