3221320133131 has 4 divisors (see below), whose sum is σ = 3227775685000. Its totient is φ = 3214864581264.

The previous prime is 3221320133123. The next prime is 3221320133179. The reversal of 3221320133131 is 1313310231223.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3221320133131 - 2³ = 3221320133123 is a prime.

It is a super-2 number, since 2×3221320133131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221320133096 and 3221320133105.

It is not an unprimeable number, because it can be changed into a prime (3221320131131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3227775186 + ... + 3227776183.

It is an arithmetic number, because the mean of its divisors is an integer number (806943921250).

Almost surely, 2^{3221320133131} is an apocalyptic number.

3221320133131 is a deficient number, since it is larger than the sum of its proper divisors (6455551869).

3221320133131 is an equidigital number, since it uses as much as digits as its factorization.

3221320133131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455551868.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 3221320133131 its reverse (1313310231223), we get a palindrome (4534630364354).

The spelling of 3221320133131 in words is "three trillion, two hundred twenty-one billion, three hundred twenty million, one hundred thirty-three thousand, one hundred thirty-one".