1123106043 has 4 divisors (see below), whose sum is σ = 1497474728. Its totient is φ = 748737360.

The previous prime is 1123106027. The next prime is 1123106057. The reversal of 1123106043 is 3406013211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3406013211 = 3 ⋅1135337737.

It is not a de Polignac number, because 1123106043 - 2⁴ = 1123106027 is a prime.

It is a super-2 number, since 2×1123106043² = 2522734367646235698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123106143) 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, 187184338 + ... + 187184343.

It is an arithmetic number, because the mean of its divisors is an integer number (374368682).

Almost surely, 2^1123106043 is an apocalyptic number.

1123106043 is a deficient number, since it is larger than the sum of its proper divisors (374368685).

1123106043 is an equidigital number, since it uses as much as digits as its factorization.

1123106043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374368684.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1123106043 is about 33512.7743256210. The cubic root of 1123106043 is about 1039.4579408332.

Adding to 1123106043 its reverse (3406013211), we get a palindrome (4529119254).

The spelling of 1123106043 in words is "one billion, one hundred twenty-three million, one hundred six thousand, forty-three".