316213431 has 4 divisors (see below), whose sum is σ = 421617912. Its totient is φ = 210808952.

The previous prime is 316213421. The next prime is 316213441. The reversal of 316213431 is 134312613.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134312613 = 3 ⋅44770871.

It is an interprime number because it is at equal distance from previous prime (316213421) and next prime (316213441).

It is a cyclic number.

It is not a de Polignac number, because 316213431 - 2⁶ = 316213367 is a prime.

It is a super-2 number, since 2×316213431² = 199981867889583522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316213411) 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, 52702236 + ... + 52702241.

It is an arithmetic number, because the mean of its divisors is an integer number (105404478).

Almost surely, 2^316213431 is an apocalyptic number.

316213431 is a deficient number, since it is larger than the sum of its proper divisors (105404481).

316213431 is a wasteful number, since it uses less digits than its factorization.

316213431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105404480.

The product of its digits is 1296, while the sum is 24.

The square root of 316213431 is about 17782.3910372031. The cubic root of 316213431 is about 681.2817742832.

The spelling of 316213431 in words is "three hundred sixteen million, two hundred thirteen thousand, four hundred thirty-one".