13001213 has 2 divisors, whose sum is σ = 13001214. Its totient is φ = 13001212.

The previous prime is 13001173. The next prime is 13001237. The reversal of 13001213 is 31210031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9966649 + 3034564 = 3157^2 + 1742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13001213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13001194 and 13001203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13001273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500606 + 6500607.

It is an arithmetic number, because the mean of its divisors is an integer number (6500607).

Almost surely, 2^13001213 is an apocalyptic number.

It is an amenable number.

13001213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13001213 is an equidigital number, since it uses as much as digits as its factorization.

13001213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 13001213 is about 3605.7194843748. The cubic root of 13001213 is about 235.1407817984.

Adding to 13001213 its reverse (31210031), we get a palindrome (44211244).

The spelling of 13001213 in words is "thirteen million, one thousand, two hundred thirteen".