231272509230 has 128 divisors (see below), whose sum is σ = 705106114560. Its totient is φ = 52841617920.

The previous prime is 231272509177. The next prime is 231272509241. The reversal of 231272509230 is 32905272132.

It is a happy number.

231272509230 is a `hidden beast` number, since 2 + 3 + 127 + 2 + 509 + 23 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5101222 + ... + 5146358.

It is an arithmetic number, because the mean of its divisors is an integer number (5508641520).

Almost surely, 2^231272509230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231272509230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352553057280).

231272509230 is an abundant number, since it is smaller than the sum of its proper divisors (473833605330).

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

231272509230 is a wasteful number, since it uses less digits than its factorization.

231272509230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47871 (or 47865 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 231272509230 in words is "two hundred thirty-one billion, two hundred seventy-two million, five hundred nine thousand, two hundred thirty".