231020120200 has 96 divisors (see below), whose sum is σ = 538728465600. Its totient is φ = 92132156160.

The previous prime is 231020120183. The next prime is 231020120207. The reversal of 231020120200 is 2021020132.

231020120200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231020120207) by changing a digit.

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, 149720629 + ... + 149722171.

It is an arithmetic number, because the mean of its divisors is an integer number (5611754850).

Almost surely, 2^231020120200 is an apocalyptic number.

231020120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231020120200 is an abundant number, since it is smaller than the sum of its proper divisors (307708345400).

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

231020120200 is a wasteful number, since it uses less digits than its factorization.

231020120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311 (or 3302 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 231020120200 its reverse (2021020132), we get a palindrome (233041140332).

The spelling of 231020120200 in words is "two hundred thirty-one billion, twenty million, one hundred twenty thousand, two hundred".