231220233300 has 72 divisors (see below), whose sum is σ = 764568245056. Its totient is φ = 52850338560.

The previous prime is 231220233287. The next prime is 231220233311. The reversal of 231220233300 is 3332022132.

231220233300 is digitally balanced in base 2, 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 (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55050337 + ... + 55054536.

Almost surely, 2^231220233300 is an apocalyptic number.

231220233300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231220233300 is an abundant number, since it is smaller than the sum of its proper divisors (533348011756).

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

231220233300 is a wasteful number, since it uses less digits than its factorization.

231220233300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110104897 (or 110104890 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 231220233300 its reverse (3332022132), we get a palindrome (234552255432).

The spelling of 231220233300 in words is "two hundred thirty-one billion, two hundred twenty million, two hundred thirty-three thousand, three hundred".