1123443516042 has 12 divisors (see below), whose sum is σ = 2434127618130. Its totient is φ = 374481172008.

The previous prime is 1123443516007. The next prime is 1123443516043. The reversal of 1123443516042 is 2406153443211.

1123443516042 is a `hidden beast` number, since 1 + 1 + 2 + 3 + 4 + 43 + 5 + 1 + 604 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 878023346841 + 245420169201 = 937029^2 + 495399^2 .

It is a super-2 number, since 2×1123443516042² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123443515988 and 1123443516006.

It is not an unprimeable number, because it can be changed into a prime (1123443516043) 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 5 ways as a sum of consecutive naturals, for example, 31206764317 + ... + 31206764352.

Almost surely, 2^{1123443516042} is an apocalyptic number.

1123443516042 is an abundant number, since it is smaller than the sum of its proper divisors (1310684102088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123443516042 is a wasteful number, since it uses less digits than its factorization.

1123443516042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62413528677 (or 62413528674 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 1123443516042 its reverse (2406153443211), we get a palindrome (3529596959253).

The spelling of 1123443516042 in words is "one trillion, one hundred twenty-three billion, four hundred forty-three million, five hundred sixteen thousand, forty-two".