231345316 has 24 divisors (see below), whose sum is σ = 447310080. Its totient is φ = 104134272.

The previous prime is 231345287. The next prime is 231345337. The reversal of 231345316 is 613543132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72396 + ... + 75523.

It is an arithmetic number, because the mean of its divisors is an integer number (18637920).

Almost surely, 2^231345316 is an apocalyptic number.

It is an amenable number.

231345316 is a deficient number, since it is larger than the sum of its proper divisors (215964764).

231345316 is a wasteful number, since it uses less digits than its factorization.

231345316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147963 (or 147961 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 231345316 is about 15210.0399736490. The cubic root of 231345316 is about 613.8848330577.

Adding to 231345316 its reverse (613543132), we get a palindrome (844888448).

The spelling of 231345316 in words is "two hundred thirty-one million, three hundred forty-five thousand, three hundred sixteen".