3113321161 has 2 divisors, whose sum is σ = 3113321162. Its totient is φ = 3113321160.

The previous prime is 3113321143. The next prime is 3113321213. The reversal of 3113321161 is 1611233113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1606406400 + 1506914761 = 40080^2 + 38819^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113321161 - 2¹⁹ = 3112796873 is a prime.

It is not a weakly prime, because it can be changed into another prime (3113321261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556660580 + 1556660581.

It is an arithmetic number, because the mean of its divisors is an integer number (1556660581).

Almost surely, 2^3113321161 is an apocalyptic number.

It is an amenable number.

3113321161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113321161 is an equidigital number, since it uses as much as digits as its factorization.

3113321161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 22.

The square root of 3113321161 is about 55797.1429465703. The cubic root of 3113321161 is about 1460.1853084675.

Adding to 3113321161 its reverse (1611233113), we get a palindrome (4724554274).

The spelling of 3113321161 in words is "three billion, one hundred thirteen million, three hundred twenty-one thousand, one hundred sixty-one".