230531225000000 has 126 divisors (see below), whose sum is σ = 571825268748750. Its totient is φ = 92212480000000.

The previous prime is 230531224999969. The next prime is 230531225000009. The reversal of 230531225000000 is 522135032.

It can be written as a sum of positive squares in 9 ways, for example, as 21192691016704 + 209338533983296 = 4603552^2 + 14468536^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 230531225000000.

It is not an unprimeable number, because it can be changed into a prime (230531225000009) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20389376 + ... + 29610624.

Almost surely, 2^{230531225000000} is an apocalyptic number.

230531225000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230531225000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285912634374375).

230531225000000 is an abundant number, since it is smaller than the sum of its proper divisors (341294043748750).

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

230531225000000 is an frugal number, since it uses more digits than its factorization.

230531225000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221301 (or 9221256 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 230531225000000 its reverse (522135032), we get a palindrome (230531747135032).

The spelling of 230531225000000 in words is "two hundred thirty trillion, five hundred thirty-one billion, two hundred twenty-five million", and thus it is an aban number.