3123313133 has 2 divisors, whose sum is σ = 3123313134. Its totient is φ = 3123313132.

The previous prime is 3123313121. The next prime is 3123313139. The reversal of 3123313133 is 3313133213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2303808004 + 819505129 = 47998^2 + 28627^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123313133 - 2⁶ = 3123313069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3123313099 and 3123313108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123313139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561656566 + 1561656567.

It is an arithmetic number, because the mean of its divisors is an integer number (1561656567).

Almost surely, 2^3123313133 is an apocalyptic number.

It is an amenable number.

3123313133 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123313133 is an equidigital number, since it uses as much as digits as its factorization.

3123313133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 23.

The square root of 3123313133 is about 55886.6096037324. The cubic root of 3123313133 is about 1461.7457588771.

Adding to 3123313133 its reverse (3313133213), we get a palindrome (6436446346).

The spelling of 3123313133 in words is "three billion, one hundred twenty-three million, three hundred thirteen thousand, one hundred thirty-three".