4321131320 has 64 divisors (see below), whose sum is σ = 10613635200. Its totient is φ = 1570250880.

The previous prime is 4321131317. The next prime is 4321131431. The reversal of 4321131320 is 231311234.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4321131292 and 4321131301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956507 + ... + 961013.

It is an arithmetic number, because the mean of its divisors is an integer number (165838050).

Almost surely, 2^4321131320 is an apocalyptic number.

4321131320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4321131320 is an abundant number, since it is smaller than the sum of its proper divisors (6292503880).

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

4321131320 is a wasteful number, since it uses less digits than its factorization.

4321131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6708 (or 6704 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 4321131320 is about 65735.3125800737. The cubic root of 4321131320 is about 1628.7927276843.

Adding to 4321131320 its reverse (231311234), we get a palindrome (4552442554).

The spelling of 4321131320 in words is "four billion, three hundred twenty-one million, one hundred thirty-one thousand, three hundred twenty".