231444241320 has 256 divisors, whose sum is σ = 716735692800. Its totient is φ = 59759078400.

The previous prime is 231444241313. The next prime is 231444241403. The reversal of 231444241320 is 23142444132.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 305738382 + ... + 305739138.

It is an arithmetic number, because the mean of its divisors is an integer number (2799748800).

Almost surely, 2^231444241320 is an apocalyptic number.

231444241320 is a gapful number since it is divisible by the number (20) 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 231444241320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358367846400).

231444241320 is an abundant number, since it is smaller than the sum of its proper divisors (485291451480).

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

231444241320 is a wasteful number, since it uses less digits than its factorization.

231444241320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 231444241320 its reverse (23142444132), we get a palindrome (254586685452).

The spelling of 231444241320 in words is "two hundred thirty-one billion, four hundred forty-four million, two hundred forty-one thousand, three hundred twenty".