1123616043 has 30 divisors (see below), whose sum is σ = 1844965892. Its totient is φ = 680973480.

The previous prime is 1123615993. The next prime is 1123616047. The reversal of 1123616043 is 3406163211.

1123616043 is a `hidden beast` number, since 1 + 1 + 2 + 3 + 616 + 0 + 43 = 666.

It is not a de Polignac number, because 1123616043 - 2¹⁰ = 1123615019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1123615998 and 1123616016.

It is not an unprimeable number, because it can be changed into a prime (1123616047) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 47521 + ... + 67122.

Almost surely, 2^1123616043 is an apocalyptic number.

1123616043 is a deficient number, since it is larger than the sum of its proper divisors (721349849).

1123616043 is a wasteful number, since it uses less digits than its factorization.

1123616043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114677 (or 114657 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1123616043 is about 33520.3825008009. The cubic root of 1123616043 is about 1039.6152555500.

Adding to 1123616043 its reverse (3406163211), we get a palindrome (4529779254).

The spelling of 1123616043 in words is "one billion, one hundred twenty-three million, six hundred sixteen thousand, forty-three".