231100312 has 32 divisors (see below), whose sum is σ = 463119120. Its totient is φ = 107729920.

The previous prime is 231100279. The next prime is 231100357. The reversal of 231100312 is 213001132.

It is a junction number, because it is equal to n+sod(n) for n = 231100292 and 231100301.

It is a congruent number.

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, 6612 + ... + 22492.

Almost surely, 2^231100312 is an apocalyptic number.

It is an amenable number.

231100312 is an abundant number, since it is smaller than the sum of its proper divisors (232018808).

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

231100312 is a wasteful number, since it uses less digits than its factorization.

231100312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16011 (or 16007 counting only the distinct ones).

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

The square root of 231100312 is about 15201.9838179101. The cubic root of 231100312 is about 613.6680469301.

Adding to 231100312 its reverse (213001132), we get a palindrome (444101444).

The spelling of 231100312 in words is "two hundred thirty-one million, one hundred thousand, three hundred twelve".