12013223 has 2 divisors, whose sum is σ = 12013224. Its totient is φ = 12013222.

The previous prime is 12013219. The next prime is 12013229. The reversal of 12013223 is 32231021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12013223 - 2² = 12013219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12013198 and 12013207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12013229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006611 + 6006612.

It is an arithmetic number, because the mean of its divisors is an integer number (6006612).

Almost surely, 2^12013223 is an apocalyptic number.

12013223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013223 is an equidigital number, since it uses as much as digits as its factorization.

12013223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12013223 is about 3466.0096653068. The cubic root of 12013223 is about 229.0269096223.

Adding to 12013223 its reverse (32231021), we get a palindrome (44244244).

The spelling of 12013223 in words is "twelve million, thirteen thousand, two hundred twenty-three".