3113221289 has 2 divisors, whose sum is σ = 3113221290. Its totient is φ = 3113221288.

The previous prime is 3113221261. The next prime is 3113221333. The reversal of 3113221289 is 9821223113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2243443225 + 869778064 = 47365^2 + 29492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3113221289 is a prime.

It is not a weakly prime, because it can be changed into another prime (3113221229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556610644 + 1556610645.

It is an arithmetic number, because the mean of its divisors is an integer number (1556610645).

Almost surely, 2^3113221289 is an apocalyptic number.

It is an amenable number.

3113221289 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113221289 is an equidigital number, since it uses as much as digits as its factorization.

3113221289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 3113221289 is about 55796.2479831754. The cubic root of 3113221289 is about 1460.1696945749.

The spelling of 3113221289 in words is "three billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred eighty-nine".