231443001231200 has 144 divisors (see below), whose sum is σ = 616387405399920. Its totient is φ = 84159369216000.

The previous prime is 231443001231179. The next prime is 231443001231203. The reversal of 231443001231200 is 2132100344132.

It is a self number, because there is not a number n which added to its sum of digits gives 231443001231200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231443001231203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478134896 + ... + 478618704.

It is an arithmetic number, because the mean of its divisors is an integer number (4280468093055).

Almost surely, 2^{231443001231200} is an apocalyptic number.

231443001231200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231443001231200 is an abundant number, since it is smaller than the sum of its proper divisors (384944404168720).

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

231443001231200 is a wasteful number, since it uses less digits than its factorization.

231443001231200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538201 (or 538188 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 231443001231200 its reverse (2132100344132), we get a palindrome (233575101575332).

The spelling of 231443001231200 in words is "two hundred thirty-one trillion, four hundred forty-three billion, one million, two hundred thirty-one thousand, two hundred".