11121111021073 has 2 divisors, whose sum is σ = 11121111021074. Its totient is φ = 11121111021072.

The previous prime is 11121111021071. The next prime is 11121111021077. The reversal of 11121111021073 is 37012011112111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9284836692609 + 1836274328464 = 3047103^2 + 1355092^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121111021073 - 2¹ = 11121111021071 is a prime.

It is a super-2 number, since 2×11121111021073² (a number of 27 digits) contains 22 as substring.

Together with 11121111021071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11121111021071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560555510536 + 5560555510537.

It is an arithmetic number, because the mean of its divisors is an integer number (5560555510537).

Almost surely, 2^{11121111021073} is an apocalyptic number.

It is an amenable number.

11121111021073 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121111021073 is an equidigital number, since it uses as much as digits as its factorization.

11121111021073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 22.

Adding to 11121111021073 its reverse (37012011112111), we get a palindrome (48133122133184).

The spelling of 11121111021073 in words is "eleven trillion, one hundred twenty-one billion, one hundred eleven million, twenty-one thousand, seventy-three".