316108213 has 4 divisors (see below), whose sum is σ = 316249920. Its totient is φ = 315966508.

The previous prime is 316108181. The next prime is 316108231. The reversal of 316108213 is 312801613.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312801613 = 281 ⋅1113173.

It is a cyclic number.

It is not a de Polignac number, because 316108213 - 2⁵ = 316108181 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 (316108813) 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, 67453 + ... + 71986.

It is an arithmetic number, because the mean of its divisors is an integer number (79062480).

Almost surely, 2^316108213 is an apocalyptic number.

It is an amenable number.

316108213 is a deficient number, since it is larger than the sum of its proper divisors (141707).

316108213 is a wasteful number, since it uses less digits than its factorization.

316108213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141706.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 316108213 is about 17779.4323025230. The cubic root of 316108213 is about 681.2062018471.

Adding to 316108213 its reverse (312801613), we get a palindrome (628909826).

The spelling of 316108213 in words is "three hundred sixteen million, one hundred eight thousand, two hundred thirteen".