10042140423 has 16 divisors (see below), whose sum is σ = 15967627776. Its totient is φ = 5488871520.

The previous prime is 10042140389. The next prime is 10042140439. The reversal of 10042140423 is 32404124001.

It is not a de Polignac number, because 10042140423 - 2⁹ = 10042139911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 10042140423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10042140443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10395108 + ... + 10396073.

It is an arithmetic number, because the mean of its divisors is an integer number (997976736).

Almost surely, 2^10042140423 is an apocalyptic number.

10042140423 is a deficient number, since it is larger than the sum of its proper divisors (5925487353).

10042140423 is a wasteful number, since it uses less digits than its factorization.

10042140423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20791214.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 10042140423 its reverse (32404124001), we get a palindrome (42446264424).

The spelling of 10042140423 in words is "ten billion, forty-two million, one hundred forty thousand, four hundred twenty-three".