1232311232320 has 448 divisors, whose sum is σ = 3504320225280. Its totient is φ = 404003635200.

The previous prime is 1232311232261. The next prime is 1232311232333. The reversal of 1232311232320 is 232321132321.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

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, 1667538511 + ... + 1667539249.

It is an arithmetic number, because the mean of its divisors is an integer number (7822143360).

Almost surely, 2^{1232311232320} is an apocalyptic number.

1232311232320 is a gapful number since it is divisible by the number (10) 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 1232311232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1752160112640).

1232311232320 is an abundant number, since it is smaller than the sum of its proper divisors (2272008992960).

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

1232311232320 is a wasteful number, since it uses less digits than its factorization.

1232311232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1232311232320 its reverse (232321132321), we get a palindrome (1464632364641).

Subtracting from 1232311232320 its reverse (232321132321), we obtain a palindrome (999990099999).

The spelling of 1232311232320 in words is "one trillion, two hundred thirty-two billion, three hundred eleven million, two hundred thirty-two thousand, three hundred twenty".