12013013 has 2 divisors, whose sum is σ = 12013014. Its totient is φ = 12013012.

The previous prime is 12013009. The next prime is 12013019. The reversal of 12013013 is 31031021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11847364 + 165649 = 3442^2 + 407^2 .

It is a cyclic number.

It is not a de Polignac number, because 12013013 - 2² = 12013009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12012985 and 12013003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12013019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006506 + 6006507.

It is an arithmetic number, because the mean of its divisors is an integer number (6006507).

Almost surely, 2^12013013 is an apocalyptic number.

It is an amenable number.

12013013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013013 is an equidigital number, since it uses as much as digits as its factorization.

12013013 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12013013 is about 3465.9793709715. The cubic root of 12013013 is about 229.0255750947.

Adding to 12013013 its reverse (31031021), we get a palindrome (43044034).

The spelling of 12013013 in words is "twelve million, thirteen thousand, thirteen".