3223531321 has 4 divisors (see below), whose sum is σ = 3231010944. Its totient is φ = 3216051700.

The previous prime is 3223531319. The next prime is 3223531349. The reversal of 3223531321 is 1231353223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1231353223 = 83 ⋅14835581.

It is a cyclic number.

It is not a de Polignac number, because 3223531321 - 2¹ = 3223531319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3223531301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3739165 + ... + 3740026.

It is an arithmetic number, because the mean of its divisors is an integer number (807752736).

Almost surely, 2^3223531321 is an apocalyptic number.

It is an amenable number.

3223531321 is a deficient number, since it is larger than the sum of its proper divisors (7479623).

3223531321 is an equidigital number, since it uses as much as digits as its factorization.

3223531321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479622.

The product of its digits is 3240, while the sum is 25.

The square root of 3223531321 is about 56776.1509878928. The cubic root of 3223531321 is about 1477.2158702307.

Adding to 3223531321 its reverse (1231353223), we get a palindrome (4454884544).

The spelling of 3223531321 in words is "three billion, two hundred twenty-three million, five hundred thirty-one thousand, three hundred twenty-one".