231120316 has 12 divisors (see below), whose sum is σ = 462240688. Its totient is φ = 99051552.

The previous prime is 231120293. The next prime is 231120341. The reversal of 231120316 is 613021132.

231120316 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 231120293 and 231120302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4127121 + ... + 4127176.

Almost surely, 2^231120316 is an apocalyptic number.

It is an amenable number.

231120316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231120316 is a wasteful number, since it uses less digits than its factorization.

231120316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8254308 (or 8254306 counting only the distinct ones).

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

The square root of 231120316 is about 15202.6417441180. The cubic root of 231120316 is about 613.6857527499.

Adding to 231120316 its reverse (613021132), we get a palindrome (844141448).

The spelling of 231120316 in words is "two hundred thirty-one million, one hundred twenty thousand, three hundred sixteen".