3113131223 has 2 divisors, whose sum is σ = 3113131224. Its totient is φ = 3113131222.

The previous prime is 3113131211. The next prime is 3113131253. The reversal of 3113131223 is 3221313113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3113131223 - 2⁶ = 3113131159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3113131195 and 3113131204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113131253) 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 as a sum of consecutive naturals, namely, 1556565611 + 1556565612.

It is an arithmetic number, because the mean of its divisors is an integer number (1556565612).

Almost surely, 2^3113131223 is an apocalyptic number.

3113131223 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113131223 is an equidigital number, since it uses as much as digits as its factorization.

3113131223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 20.

The square root of 3113131223 is about 55795.4408800576. The cubic root of 3113131223 is about 1460.1556134566.

Adding to 3113131223 its reverse (3221313113), we get a palindrome (6334444336).

The spelling of 3113131223 in words is "three billion, one hundred thirteen million, one hundred thirty-one thousand, two hundred twenty-three".