4042097023 has 4 divisors (see below), whose sum is σ = 4062615480. Its totient is φ = 4021578568.

The previous prime is 4042096997. The next prime is 4042097041. The reversal of 4042097023 is 3207902404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042097023 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 (4042197023) 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 3 ways as a sum of consecutive naturals, for example, 10258933 + ... + 10259326.

It is an arithmetic number, because the mean of its divisors is an integer number (1015653870).

Almost surely, 2^4042097023 is an apocalyptic number.

4042097023 is a deficient number, since it is larger than the sum of its proper divisors (20518457).

4042097023 is a wasteful number, since it uses less digits than its factorization.

4042097023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20518456.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 4042097023 is about 63577.4883351018. The cubic root of 4042097023 is about 1592.9503680018.

Adding to 4042097023 its reverse (3207902404), we get a palindrome (7249999427).

The spelling of 4042097023 in words is "four billion, forty-two million, ninety-seven thousand, twenty-three".