11121773 has 4 divisors (see below), whose sum is σ = 11977308. Its totient is φ = 10266240.

The previous prime is 11121767. The next prime is 11121823. The reversal of 11121773 is 37712111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5822569 + 5299204 = 2413^2 + 2302^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121773 - 2⁶ = 11121709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427748 + ... + 427773.

It is an arithmetic number, because the mean of its divisors is an integer number (2994327).

Almost surely, 2^11121773 is an apocalyptic number.

11121773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11121773 is a deficient number, since it is larger than the sum of its proper divisors (855535).

11121773 is an equidigital number, since it uses as much as digits as its factorization.

11121773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855534.

The product of its digits is 294, while the sum is 23.

The square root of 11121773 is about 3334.9322331946. The cubic root of 11121773 is about 223.2156680740.

Adding to 11121773 its reverse (37712111), we get a palindrome (48833884).

The spelling of 11121773 in words is "eleven million, one hundred twenty-one thousand, seven hundred seventy-three".