231340413144 has 64 divisors (see below), whose sum is σ = 592136582400. Its totient is φ = 75277431936.

The previous prime is 231340413127. The next prime is 231340413151. The reversal of 231340413144 is 441314043132.

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, 1783597 + ... + 1908899.

It is an arithmetic number, because the mean of its divisors is an integer number (9252134100).

Almost surely, 2^231340413144 is an apocalyptic number.

231340413144 is a gapful number since it is divisible by the number (24) 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 231340413144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296068291200).

231340413144 is an abundant number, since it is smaller than the sum of its proper divisors (360796169256).

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

231340413144 is a wasteful number, since it uses less digits than its factorization.

231340413144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127144 (or 127140 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 231340413144 its reverse (441314043132), we get a palindrome (672654456276).

The spelling of 231340413144 in words is "two hundred thirty-one billion, three hundred forty million, four hundred thirteen thousand, one hundred forty-four".