3123313009 has 2 divisors, whose sum is σ = 3123313010. Its totient is φ = 3123313008.

The previous prime is 3123313007. The next prime is 3123313027. The reversal of 3123313009 is 9003133213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3098592225 + 24720784 = 55665^2 + 4972^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123313009 - 2¹ = 3123313007 is a prime.

Together with 3123313007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3123313007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561656504 + 1561656505.

It is an arithmetic number, because the mean of its divisors is an integer number (1561656505).

Almost surely, 2^3123313009 is an apocalyptic number.

It is an amenable number.

3123313009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123313009 is an equidigital number, since it uses as much as digits as its factorization.

3123313009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 3123313009 is about 55886.6084943433. The cubic root of 3123313009 is about 1461.7457395326.

The spelling of 3123313009 in words is "three billion, one hundred twenty-three million, three hundred thirteen thousand, nine".