231323100 has 72 divisors (see below), whose sum is σ = 704538240. Its totient is φ = 58438080.

The previous prime is 231323093. The next prime is 231323123. The reversal of 231323100 is 1323132.

231323100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231323100² = 107020753187220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231323100.

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 23 ways as a sum of consecutive naturals, for example, 14592 + ... + 25991.

Almost surely, 2^231323100 is an apocalyptic number.

231323100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231323100 is an abundant number, since it is smaller than the sum of its proper divisors (473215140).

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

231323100 is a wasteful number, since it uses less digits than its factorization.

231323100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40619 (or 40612 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 231323100 is about 15209.3096490275. The cubic root of 231323100 is about 613.8651820554.

Adding to 231323100 its reverse (1323132), we get a palindrome (232646232).

The spelling of 231323100 in words is "two hundred thirty-one million, three hundred twenty-three thousand, one hundred".