231222323130 has 32 divisors (see below), whose sum is σ = 560654547264. Its totient is φ = 61023622656.

The previous prime is 231222323117. The next prime is 231222323131. The reversal of 231222323130 is 31323222132.

It is a self number, because there is not a number n which added to its sum of digits gives 231222323130.

It is not an unprimeable number, because it can be changed into a prime (231222323131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39726012 + ... + 39731831.

It is an arithmetic number, because the mean of its divisors is an integer number (17520454602).

Almost surely, 2^231222323130 is an apocalyptic number.

231222323130 is an abundant number, since it is smaller than the sum of its proper divisors (329432224134).

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

231222323130 is a wasteful number, since it uses less digits than its factorization.

231222323130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79457950.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231222323130 its reverse (31323222132), we get a palindrome (262545545262).

The spelling of 231222323130 in words is "two hundred thirty-one billion, two hundred twenty-two million, three hundred twenty-three thousand, one hundred thirty".