10311323232 has 144 divisors (see below), whose sum is σ = 32156974080. Its totient is φ = 2883347712.

The previous prime is 10311323179. The next prime is 10311323287. The reversal of 10311323232 is 23232311301.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 10311323199 and 10311323208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197769 + ... + 244407.

It is an arithmetic number, because the mean of its divisors is an integer number (223312320).

Almost surely, 2^10311323232 is an apocalyptic number.

10311323232 is a gapful number since it is divisible by the number (12) 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 10311323232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16078487040).

10311323232 is an abundant number, since it is smaller than the sum of its proper divisors (21845650848).

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

10311323232 is a wasteful number, since it uses less digits than its factorization.

10311323232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46713 (or 46698 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 10311323232 its reverse (23232311301), we get a palindrome (33543634533).

The spelling of 10311323232 in words is "ten billion, three hundred eleven million, three hundred twenty-three thousand, two hundred thirty-two".