231334444144 has 20 divisors (see below), whose sum is σ = 462668889280. Its totient is φ = 111936021120.

The previous prime is 231334444139. The next prime is 231334444151. The reversal of 231334444144 is 441444433132.

It is a happy number.

231334444144 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233199549 + ... + 233200540.

It is an arithmetic number, because the mean of its divisors is an integer number (23133444464).

Almost surely, 2^231334444144 is an apocalyptic number.

It is an amenable number.

231334444144 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

231334444144 is a wasteful number, since it uses less digits than its factorization.

231334444144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466400128 (or 466400122 counting only the distinct ones).

The product of its digits is 221184, while the sum is 37.

Adding to 231334444144 its reverse (441444433132), we get a palindrome (672778877276).

The spelling of 231334444144 in words is "two hundred thirty-one billion, three hundred thirty-four million, four hundred forty-four thousand, one hundred forty-four".