11021123201213 has 2 divisors, whose sum is σ = 11021123201214. Its totient is φ = 11021123201212.

The previous prime is 11021123201203. The next prime is 11021123201269. The reversal of 11021123201213 is 31210232112011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9017276282884 + 2003846918329 = 3002878^2 + 1415573^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021123201213 - 2⁴ = 11021123201197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021123201203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510561600606 + 5510561600607.

It is an arithmetic number, because the mean of its divisors is an integer number (5510561600607).

Almost surely, 2^{11021123201213} is an apocalyptic number.

It is an amenable number.

11021123201213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021123201213 is an equidigital number, since it uses as much as digits as its factorization.

11021123201213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11021123201213 its reverse (31210232112011), we get a palindrome (42231355313224).

The spelling of 11021123201213 in words is "eleven trillion, twenty-one billion, one hundred twenty-three million, two hundred one thousand, two hundred thirteen".