3133220321 has 16 divisors (see below), whose sum is σ = 3913248768. Its totient is φ = 2437160400.

The previous prime is 3133220297. The next prime is 3133220323. The reversal of 3133220321 is 1230223313.

It is a cyclic number.

It is not a de Polignac number, because 3133220321 - 2⁶ = 3133220257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3133220293 and 3133220302.

It is not an unprimeable number, because it can be changed into a prime (3133220323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8336 + ... + 79598.

It is an arithmetic number, because the mean of its divisors is an integer number (244578048).

Almost surely, 2^3133220321 is an apocalyptic number.

It is an amenable number.

3133220321 is a deficient number, since it is larger than the sum of its proper divisors (780028447).

3133220321 is a wasteful number, since it uses less digits than its factorization.

3133220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71852.

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

The square root of 3133220321 is about 55975.1759354091. The cubic root of 3133220321 is about 1463.2896861335.

Adding to 3133220321 its reverse (1230223313), we get a palindrome (4363443634).

The spelling of 3133220321 in words is "three billion, one hundred thirty-three million, two hundred twenty thousand, three hundred twenty-one".