231233021100 has 54 divisors (see below), whose sum is σ = 724787061180. Its totient is φ = 61662138720.

The previous prime is 231233021083. The next prime is 231233021141. The reversal of 231233021100 is 1120332132.

231233021100 is a `hidden beast` number, since 2 + 312 + 330 + 21 + 1 + 0 + 0 = 666.

231233021100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 128461890 + ... + 128463689.

Almost surely, 2^231233021100 is an apocalyptic number.

231233021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231233021100 is an abundant number, since it is smaller than the sum of its proper divisors (493554040080).

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

231233021100 is a wasteful number, since it uses less digits than its factorization.

231233021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256925599 (or 256925589 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231233021100 its reverse (1120332132), we get a palindrome (232353353232).

The spelling of 231233021100 in words is "two hundred thirty-one billion, two hundred thirty-three million, twenty-one thousand, one hundred".