1121388826 has 4 divisors (see below), whose sum is σ = 1682083242. Its totient is φ = 560694412.

The previous prime is 1121388817. The next prime is 1121388871. The reversal of 1121388826 is 6288831211.

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

It can be written as a sum of positive squares in only one way, i.e., 759057601 + 362331225 = 27551^2 + 19035^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 280347205 + ... + 280347208.

Almost surely, 2^1121388826 is an apocalyptic number.

1121388826 is a deficient number, since it is larger than the sum of its proper divisors (560694416).

1121388826 is an equidigital number, since it uses as much as digits as its factorization.

1121388826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560694415.

The product of its digits is 36864, while the sum is 40.

The square root of 1121388826 is about 33487.1441899724. The cubic root of 1121388826 is about 1038.9278972790.

The spelling of 1121388826 in words is "one billion, one hundred twenty-one million, three hundred eighty-eight thousand, eight hundred twenty-six".