231310120 has 16 divisors (see below), whose sum is σ = 520447860. Its totient is φ = 92524032.

The previous prime is 231310117. The next prime is 231310159. The reversal of 231310120 is 21013132.

It can be written as a sum of positive squares in 2 ways, for example, as 214153956 + 17156164 = 14634^2 + 4142^2 .

It is a super-2 number, since 2×231310120² = 107008743228828800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231310120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2891337 + ... + 2891416.

Almost surely, 2^231310120 is an apocalyptic number.

231310120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231310120 is an abundant number, since it is smaller than the sum of its proper divisors (289137740).

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

231310120 is a wasteful number, since it uses less digits than its factorization.

231310120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782764 (or 5782760 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 231310120 is about 15208.8829307086. The cubic root of 231310120 is about 613.8537001079.

Adding to 231310120 its reverse (21013132), we get a palindrome (252323252).

The spelling of 231310120 in words is "two hundred thirty-one million, three hundred ten thousand, one hundred twenty".