231315112 has 32 divisors (see below), whose sum is σ = 507769920. Its totient is φ = 96716160.

The previous prime is 231315023. The next prime is 231315121. The reversal of 231315112 is 211513132.

231315112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231315112.

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, 48078 + ... + 52669.

It is an arithmetic number, because the mean of its divisors is an integer number (15867810).

Almost surely, 2^231315112 is an apocalyptic number.

It is an amenable number.

231315112 is an abundant number, since it is smaller than the sum of its proper divisors (276454808).

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

231315112 is a wasteful number, since it uses less digits than its factorization.

231315112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100801 (or 100797 counting only the distinct ones).

The product of its digits is 180, while the sum is 19.

The square root of 231315112 is about 15209.0470444404. The cubic root of 231315112 is about 613.8581160202.

Adding to 231315112 its reverse (211513132), we get a palindrome (442828244).

The spelling of 231315112 in words is "two hundred thirty-one million, three hundred fifteen thousand, one hundred twelve".