316012231 has 4 divisors (see below), whose sum is σ = 317616552. Its totient is φ = 314407912.

The previous prime is 316012223. The next prime is 316012259. The reversal of 316012231 is 132210613.

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 316012231 - 2³ = 316012223 is a prime.

It is a super-2 number, since 2×316012231² = 199727460283194722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 316012199 and 316012208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316010231) 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, 801865 + ... + 802258.

It is an arithmetic number, because the mean of its divisors is an integer number (79404138).

Almost surely, 2^316012231 is an apocalyptic number.

316012231 is a deficient number, since it is larger than the sum of its proper divisors (1604321).

316012231 is a wasteful number, since it uses less digits than its factorization.

316012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604320.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 316012231 is about 17776.7328550552. The cubic root of 316012231 is about 681.1372485060.

Adding to 316012231 its reverse (132210613), we get a palindrome (448222844).

The spelling of 316012231 in words is "three hundred sixteen million, twelve thousand, two hundred thirty-one".