13122313 has 2 divisors, whose sum is σ = 13122314. Its totient is φ = 13122312.

The previous prime is 13122299. The next prime is 13122341. The reversal of 13122313 is 31322131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9784384 + 3337929 = 3128^2 + 1827^2 .

It is a cyclic number.

It is not a de Polignac number, because 13122313 - 2¹³ = 13114121 is a prime.

It is not a weakly prime, because it can be changed into another prime (13122713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561156 + 6561157.

It is an arithmetic number, because the mean of its divisors is an integer number (6561157).

Almost surely, 2^13122313 is an apocalyptic number.

It is an amenable number.

13122313 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122313 is an equidigital number, since it uses as much as digits as its factorization.

13122313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 16.

The square root of 13122313 is about 3622.4733263338. The cubic root of 13122313 is about 235.8686008458.

Adding to 13122313 its reverse (31322131), we get a palindrome (44444444).

The spelling of 13122313 in words is "thirteen million, one hundred twenty-two thousand, three hundred thirteen".