11020111223813 has 2 divisors, whose sum is σ = 11020111223814. Its totient is φ = 11020111223812.

The previous prime is 11020111223801. The next prime is 11020111223831. The reversal of 11020111223813 is 31832211102011.

It is a happy number.

Together with next prime (11020111223831) 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., 9878562148324 + 1141549075489 = 3143018^2 + 1068433^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020111223813 - 2⁶ = 11020111223749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020111225813) 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, 5510055611906 + 5510055611907.

It is an arithmetic number, because the mean of its divisors is an integer number (5510055611907).

Almost surely, 2^{11020111223813} is an apocalyptic number.

It is an amenable number.

11020111223813 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020111223813 is an equidigital number, since it uses as much as digits as its factorization.

11020111223813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 11020111223813 its reverse (31832211102011), we get a palindrome (42852322325824).

The spelling of 11020111223813 in words is "eleven trillion, twenty billion, one hundred eleven million, two hundred twenty-three thousand, eight hundred thirteen".