1123444172 has 12 divisors (see below), whose sum is σ = 2019163440. Its totient is φ = 546540336.

The previous prime is 1123444171. The next prime is 1123444249. The reversal of 1123444172 is 2714443211.

It is not an unprimeable number, because it can be changed into a prime (1123444171) 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, 3795272 + ... + 3795567.

It is an arithmetic number, because the mean of its divisors is an integer number (168263620).

Almost surely, 2^1123444172 is an apocalyptic number.

It is an amenable number.

1123444172 is a deficient number, since it is larger than the sum of its proper divisors (895719268).

1123444172 is a wasteful number, since it uses less digits than its factorization.

1123444172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590880 (or 7590878 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 1123444172 is about 33517.8187237774. The cubic root of 1123444172 is about 1039.5622455009.

Adding to 1123444172 its reverse (2714443211), we get a palindrome (3837887383).

The spelling of 1123444172 in words is "one billion, one hundred twenty-three million, four hundred forty-four thousand, one hundred seventy-two".