3223131320 has 32 divisors (see below), whose sum is σ = 7678638000. Its totient is φ = 1213413888.

The previous prime is 3223131283. The next prime is 3223131377. The reversal of 3223131320 is 231313223.

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 = 3223131292 and 3223131301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2369270 + ... + 2370629.

Almost surely, 2^3223131320 is an apocalyptic number.

It is an amenable number.

3223131320 is an abundant number, since it is smaller than the sum of its proper divisors (4455506680).

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

3223131320 is a wasteful number, since it uses less digits than its factorization.

3223131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4739927 (or 4739923 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3223131320 is about 56772.6282639795. The cubic root of 3223131320 is about 1477.1547662003.

Adding to 3223131320 its reverse (231313223), we get a palindrome (3454444543).

The spelling of 3223131320 in words is "three billion, two hundred twenty-three million, one hundred thirty-one thousand, three hundred twenty".