1122403 has 4 divisors (see below), whose sum is σ = 1124848. Its totient is φ = 1119960.

The previous prime is 1122397. The next prime is 1122419. The reversal of 1122403 is 3042211.

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

It is a cyclic number.

It is not a de Polignac number, because 1122403 - 2⁵ = 1122371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303 + ... + 1528.

It is an arithmetic number, because the mean of its divisors is an integer number (281212).

2^1122403 is an apocalyptic number.

1122403 is a deficient number, since it is larger than the sum of its proper divisors (2445).

1122403 is an equidigital number, since it uses as much as digits as its factorization.

1122403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1122403 is about 1059.4352269016. The cubic root of 1122403 is about 103.9241001933.

Adding to 1122403 its reverse (3042211), we get a palindrome (4164614).

The spelling of 1122403 in words is "one million, one hundred twenty-two thousand, four hundred three".