231310322232 has 128 divisors (see below), whose sum is σ = 658589184000. Its totient is φ = 67055869440.

The previous prime is 231310322219. The next prime is 231310322239. The reversal of 231310322232 is 232223013132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231310322239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 695913 + ... + 973095.

It is an arithmetic number, because the mean of its divisors is an integer number (5145228000).

Almost surely, 2^231310322232 is an apocalyptic number.

231310322232 is a gapful number since it is divisible by the number (22) 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 231310322232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329294592000).

231310322232 is an abundant number, since it is smaller than the sum of its proper divisors (427278861768).

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

231310322232 is a wasteful number, since it uses less digits than its factorization.

231310322232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277341 (or 277337 counting only the distinct ones).

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

Adding to 231310322232 its reverse (232223013132), we get a palindrome (463533335364).

The spelling of 231310322232 in words is "two hundred thirty-one billion, three hundred ten million, three hundred twenty-two thousand, two hundred thirty-two".