2123434003 has 4 divisors (see below), whose sum is σ = 2123699248. Its totient is φ = 2123168760.

The previous prime is 2123433997. The next prime is 2123434073. The reversal of 2123434003 is 3004343212.

It is a happy number.

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 2123434003 - 2⁵ = 2123433971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123434073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120228 + ... + 136753.

It is an arithmetic number, because the mean of its divisors is an integer number (530924812).

Almost surely, 2^2123434003 is an apocalyptic number.

2123434003 is a deficient number, since it is larger than the sum of its proper divisors (265245).

2123434003 is an equidigital number, since it uses as much as digits as its factorization.

2123434003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265244.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2123434003 is about 46080.7335336581. The cubic root of 2123434003 is about 1285.3249044438.

Adding to 2123434003 its reverse (3004343212), we get a palindrome (5127777215).

The spelling of 2123434003 in words is "two billion, one hundred twenty-three million, four hundred thirty-four thousand, three".