231143244240200 has 48 divisors (see below), whose sum is σ = 537450004318500. Its totient is φ = 92450078520320.

The previous prime is 231143244240149. The next prime is 231143244240319. The reversal of 231143244240200 is 2042442341132.

It is a happy number.

231143244240200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 11980860750244 + 219162383489956 = 3461338^2 + 14804134^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42551645 + ... + 47675244.

Almost surely, 2^{231143244240200} is an apocalyptic number.

231143244240200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231143244240200 is an abundant number, since it is smaller than the sum of its proper divisors (306306760078300).

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

231143244240200 is a wasteful number, since it uses less digits than its factorization.

231143244240200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90239714 (or 90239705 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 231143244240200 its reverse (2042442341132), we get a palindrome (233185686581332).

The spelling of 231143244240200 in words is "two hundred thirty-one trillion, one hundred forty-three billion, two hundred forty-four million, two hundred forty thousand, two hundred".