3231112320 has 192 divisors, whose sum is σ = 11459742840. Its totient is φ = 838287360.

The previous prime is 3231112301. The next prime is 3231112363. The reversal of 3231112320 is 232111323.

3231112320 is a `hidden beast` number, since 3 + 231 + 112 + 320 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3092249664 + 138862656 = 55608^2 + 11784^2 .

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3231112293 and 3231112302.

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, 205540 + ... + 220700.

Almost surely, 2^3231112320 is an apocalyptic number.

3231112320 is a gapful number since it is divisible by the number (30) 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 3231112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5729871420).

3231112320 is an abundant number, since it is smaller than the sum of its proper divisors (8228630520).

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

3231112320 is a wasteful number, since it uses less digits than its factorization.

3231112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15223 (or 15208 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3231112320 is about 56842.8739597146. The cubic root of 3231112320 is about 1478.3729868005.

Adding to 3231112320 its reverse (232111323), we get a palindrome (3463223643).

The spelling of 3231112320 in words is "three billion, two hundred thirty-one million, one hundred twelve thousand, three hundred twenty".