1123144442 has 32 divisors (see below), whose sum is σ = 1949802624. Its totient is φ = 475272000.

The previous prime is 1123144427. The next prime is 1123144499. The reversal of 1123144442 is 2444413211.

It is a super-2 number, since 2×1123144442² = 2522906875190982728, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 650993 + ... + 652715.

It is an arithmetic number, because the mean of its divisors is an integer number (60931332).

Almost surely, 2^1123144442 is an apocalyptic number.

1123144442 is a deficient number, since it is larger than the sum of its proper divisors (826658182).

1123144442 is a wasteful number, since it uses less digits than its factorization.

1123144442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294.

The product of its digits is 3072, while the sum is 26.

The square root of 1123144442 is about 33513.3472216668. The cubic root of 1123144442 is about 1039.4697870552.

Adding to 1123144442 its reverse (2444413211), we get a palindrome (3567557653).

The spelling of 1123144442 in words is "one billion, one hundred twenty-three million, one hundred forty-four thousand, four hundred forty-two".