2140423423 has 4 divisors (see below), whose sum is σ = 2142426760. Its totient is φ = 2138420088.

The previous prime is 2140423421. The next prime is 2140423429. The reversal of 2140423423 is 3243240412.

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 2140423423 - 2¹ = 2140423421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140423421) 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, 1000065 + ... + 1002202.

It is an arithmetic number, because the mean of its divisors is an integer number (535606690).

Almost surely, 2^2140423423 is an apocalyptic number.

2140423423 is a deficient number, since it is larger than the sum of its proper divisors (2003337).

2140423423 is a wasteful number, since it uses less digits than its factorization.

2140423423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003336.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2140423423 is about 46264.7103416848. The cubic root of 2140423423 is about 1288.7437287987.

Adding to 2140423423 its reverse (3243240412), we get a palindrome (5383663835).

The spelling of 2140423423 in words is "two billion, one hundred forty million, four hundred twenty-three thousand, four hundred twenty-three".