3201131320 has 32 divisors (see below), whose sum is σ = 7206563520. Its totient is φ = 1279738240.

The previous prime is 3201131303. The next prime is 3201131321. The reversal of 3201131320 is 231311023.

It is a junction number, because it is equal to n+sod(n) for n = 3201131294 and 3201131303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201131321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53454 + ... + 96226.

It is an arithmetic number, because the mean of its divisors is an integer number (225205110).

Almost surely, 2^3201131320 is an apocalyptic number.

It is an amenable number.

3201131320 is an abundant number, since it is smaller than the sum of its proper divisors (4005432200).

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

3201131320 is a wasteful number, since it uses less digits than its factorization.

3201131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44655 (or 44651 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3201131320 is about 56578.5411618221. The cubic root of 3201131320 is about 1473.7862381000.

Adding to 3201131320 its reverse (231311023), we get a palindrome (3432442343).

The spelling of 3201131320 in words is "three billion, two hundred one million, one hundred thirty-one thousand, three hundred twenty".