11011122323213 has 2 divisors, whose sum is σ = 11011122323214. Its totient is φ = 11011122323212.

The previous prime is 11011122323209. The next prime is 11011122323231. The reversal of 11011122323213 is 31232322111011.

It is a happy number.

Together with next prime (11011122323231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9991048583044 + 1020073740169 = 3160862^2 + 1009987^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011122323213 - 2² = 11011122323209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011122323203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505561161606 + 5505561161607.

It is an arithmetic number, because the mean of its divisors is an integer number (5505561161607).

Almost surely, 2^{11011122323213} is an apocalyptic number.

It is an amenable number.

11011122323213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011122323213 is an equidigital number, since it uses as much as digits as its factorization.

11011122323213 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 23.

Adding to 11011122323213 its reverse (31232322111011), we get a palindrome (42243444434224).

The spelling of 11011122323213 in words is "eleven trillion, eleven billion, one hundred twenty-two million, three hundred twenty-three thousand, two hundred thirteen".