1123252199 has 4 divisors (see below), whose sum is σ = 1124999736. Its totient is φ = 1121504664.

The previous prime is 1123252181. The next prime is 1123252289. The reversal of 1123252199 is 9912523211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9912523211 = 18287 ⋅542053.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123252199 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 (1123252139) 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, 872804 + ... + 874089.

It is an arithmetic number, because the mean of its divisors is an integer number (281249934).

Almost surely, 2^1123252199 is an apocalyptic number.

1123252199 is a deficient number, since it is larger than the sum of its proper divisors (1747537).

1123252199 is an equidigital number, since it uses as much as digits as its factorization.

1123252199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747536.

The product of its digits is 9720, while the sum is 35.

The square root of 1123252199 is about 33514.9548560042. The cubic root of 1123252199 is about 1039.5030290140.

The spelling of 1123252199 in words is "one billion, one hundred twenty-three million, two hundred fifty-two thousand, one hundred ninety-nine".