2123134043 has 4 divisors (see below), whose sum is σ = 2234877960. Its totient is φ = 2011390128.

The previous prime is 2123134033. The next prime is 2123134067. The reversal of 2123134043 is 3404313212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2123134043 - 2⁸ = 2123133787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123134003) 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, 55871930 + ... + 55871967.

It is an arithmetic number, because the mean of its divisors is an integer number (558719490).

Almost surely, 2^2123134043 is an apocalyptic number.

2123134043 is a deficient number, since it is larger than the sum of its proper divisors (111743917).

2123134043 is a wasteful number, since it uses less digits than its factorization.

2123134043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111743916.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2123134043 is about 46077.4786962134. The cubic root of 2123134043 is about 1285.2643791793.

Adding to 2123134043 its reverse (3404313212), we get a palindrome (5527447255).

The spelling of 2123134043 in words is "two billion, one hundred twenty-three million, one hundred thirty-four thousand, forty-three".