231351324344 has 64 divisors (see below), whose sum is σ = 525792384000. Its totient is φ = 93162161664.

The previous prime is 231351324311. The next prime is 231351324377. The reversal of 231351324344 is 443423153132.

It is an interprime number because it is at equal distance from previous prime (231351324311) and next prime (231351324377).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367397 + ... + 773099.

It is an arithmetic number, because the mean of its divisors is an integer number (8215506000).

Almost surely, 2^231351324344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231351324344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262896192000).

231351324344 is an abundant number, since it is smaller than the sum of its proper divisors (294441059656).

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

231351324344 is a wasteful number, since it uses less digits than its factorization.

231351324344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406332 (or 406328 counting only the distinct ones).

The product of its digits is 103680, while the sum is 35.

Adding to 231351324344 its reverse (443423153132), we get a palindrome (674774477476).

The spelling of 231351324344 in words is "two hundred thirty-one billion, three hundred fifty-one million, three hundred twenty-four thousand, three hundred forty-four".