1123199331 has 4 divisors (see below), whose sum is σ = 1497599112. Its totient is φ = 748799552.

The previous prime is 1123199309. The next prime is 1123199353. The reversal of 1123199331 is 1339913211.

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

It is an interprime number because it is at equal distance from previous prime (1123199309) and next prime (1123199353).

It is a cyclic number.

It is not a de Polignac number, because 1123199331 - 2¹⁴ = 1123182947 is a prime.

It is a super-2 number, since 2×1123199331² = 2523153474317695122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123199292 and 1123199301.

It is not an unprimeable number, because it can be changed into a prime (1123199131) 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, 187199886 + ... + 187199891.

It is an arithmetic number, because the mean of its divisors is an integer number (374399778).

Almost surely, 2^1123199331 is an apocalyptic number.

1123199331 is a deficient number, since it is larger than the sum of its proper divisors (374399781).

1123199331 is an equidigital number, since it uses as much as digits as its factorization.

1123199331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374399780.

The product of its digits is 4374, while the sum is 33.

The square root of 1123199331 is about 33514.1661241929. The cubic root of 1123199331 is about 1039.4867200294.

The spelling of 1123199331 in words is "one billion, one hundred twenty-three million, one hundred ninety-nine thousand, three hundred thirty-one".