3231130320 has 120 divisors (see below), whose sum is σ = 11837715552. Its totient is φ = 783302400.

The previous prime is 3231130219. The next prime is 3231130351. The reversal of 3231130320 is 230311323.

3231130320 is a `hidden beast` number, since 3 + 2 + 311 + 30 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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 = 3231130293 and 3231130302.

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, 196066 + ... + 211905.

Almost surely, 2^3231130320 is an apocalyptic number.

3231130320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3231130320 is an abundant number, since it is smaller than the sum of its proper divisors (8606585232).

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

3231130320 is a wasteful number, since it uses less digits than its factorization.

3231130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408001 (or 407992 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 3231130320 is about 56843.0322906863. The cubic root of 3231130320 is about 1478.3757320537.

Adding to 3231130320 its reverse (230311323), we get a palindrome (3461441643).

It can be divided in two parts, 32311303 and 20, that added together give a palindrome (32311323).

The spelling of 3231130320 in words is "three billion, two hundred thirty-one million, one hundred thirty thousand, three hundred twenty".