12011326213 has 2 divisors, whose sum is σ = 12011326214. Its totient is φ = 12011326212.

The previous prime is 12011326193. The next prime is 12011326277. The reversal of 12011326213 is 31262311021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6925069089 + 5086257124 = 83217^2 + 71318^2 .

It is an emirp because it is prime and its reverse (31262311021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011326213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011326513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005663106 + 6005663107.

It is an arithmetic number, because the mean of its divisors is an integer number (6005663107).

Almost surely, 2^12011326213 is an apocalyptic number.

It is an amenable number.

12011326213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011326213 is an equidigital number, since it uses as much as digits as its factorization.

12011326213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12011326213 its reverse (31262311021), we get a palindrome (43273637234).

The spelling of 12011326213 in words is "twelve billion, eleven million, three hundred twenty-six thousand, two hundred thirteen".