1122123203 has 4 divisors (see below), whose sum is σ = 1122264288. Its totient is φ = 1121982120.

The previous prime is 1122123181. The next prime is 1122123209. The reversal of 1122123203 is 3023212211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3023212211 = 79 ⋅38268509.

It is a cyclic number.

It is not a de Polignac number, because 1122123203 - 2⁶ = 1122123139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122123209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57851 + ... + 74772.

It is an arithmetic number, because the mean of its divisors is an integer number (280566072).

Almost surely, 2^1122123203 is an apocalyptic number.

1122123203 is a deficient number, since it is larger than the sum of its proper divisors (141085).

1122123203 is an equidigital number, since it uses as much as digits as its factorization.

1122123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141084.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1122123203 is about 33498.1074540040. The cubic root of 1122123203 is about 1039.1546394059.

Adding to 1122123203 its reverse (3023212211), we get a palindrome (4145335414).

The spelling of 1122123203 in words is "one billion, one hundred twenty-two million, one hundred twenty-three thousand, two hundred three".