1123305622 has 4 divisors (see below), whose sum is σ = 1684958436. Its totient is φ = 561652810.

The previous prime is 1123305551. The next prime is 1123305643. The reversal of 1123305622 is 2265033211.

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

It is a congruent 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, 280826404 + ... + 280826407.

It is an arithmetic number, because the mean of its divisors is an integer number (421239609).

Almost surely, 2^1123305622 is an apocalyptic number.

1123305622 is a deficient number, since it is larger than the sum of its proper divisors (561652814).

1123305622 is an equidigital number, since it uses as much as digits as its factorization.

1123305622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561652813.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1123305622 is about 33515.7518489441. The cubic root of 1123305622 is about 1039.5195086879.

Adding to 1123305622 its reverse (2265033211), we get a palindrome (3388338833).

The spelling of 1123305622 in words is "one billion, one hundred twenty-three million, three hundred five thousand, six hundred twenty-two".