1123444123 has 8 divisors (see below), whose sum is σ = 1164312576. Its totient is φ = 1082865000.

The previous prime is 1123444097. The next prime is 1123444129. The reversal of 1123444123 is 3214443211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123444123 - 2²¹ = 1121346971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123444129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64411 + ... + 79972.

It is an arithmetic number, because the mean of its divisors is an integer number (145539072).

Almost surely, 2^1123444123 is an apocalyptic number.

1123444123 is a deficient number, since it is larger than the sum of its proper divisors (40868453).

1123444123 is a wasteful number, since it uses less digits than its factorization.

1123444123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144665.

The product of its digits is 2304, while the sum is 25.

The square root of 1123444123 is about 33517.8179928229. The cubic root of 1123444123 is about 1039.5622303871.

Adding to 1123444123 its reverse (3214443211), we get a palindrome (4337887334).

The spelling of 1123444123 in words is "one billion, one hundred twenty-three million, four hundred forty-four thousand, one hundred twenty-three".