2123422543 has 8 divisors (see below), whose sum is σ = 2396339280. Its totient is φ = 1863818880.

The previous prime is 2123422529. The next prime is 2123422573. The reversal of 2123422543 is 3452243212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2123422543 - 2²⁵ = 2089868111 is a prime.

It is a super-2 number, since 2×2123422543² = 9017846592241173698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123422523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3327930 + ... + 3328567.

It is an arithmetic number, because the mean of its divisors is an integer number (299542410).

Almost surely, 2^2123422543 is an apocalyptic number.

2123422543 is a deficient number, since it is larger than the sum of its proper divisors (272916737).

2123422543 is a wasteful number, since it uses less digits than its factorization.

2123422543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6656537.

The product of its digits is 11520, while the sum is 28.

The square root of 2123422543 is about 46080.6091865114. The cubic root of 2123422543 is about 1285.3225921751.

Adding to 2123422543 its reverse (3452243212), we get a palindrome (5575665755).

The spelling of 2123422543 in words is "two billion, one hundred twenty-three million, four hundred twenty-two thousand, five hundred forty-three".