540042210023 has 4 divisors (see below), whose sum is σ = 549195467880. Its totient is φ = 530888952168.

The previous prime is 540042209947. The next prime is 540042210041. The reversal of 540042210023 is 320012240045.

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 540042210023 - 2⁸ = 540042209767 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 (540042210523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4576628840 + ... + 4576628957.

It is an arithmetic number, because the mean of its divisors is an integer number (137298866970).

Almost surely, 2^540042210023 is an apocalyptic number.

540042210023 is a deficient number, since it is larger than the sum of its proper divisors (9153257857).

540042210023 is an equidigital number, since it uses as much as digits as its factorization.

540042210023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9153257856.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 540042210023 its reverse (320012240045), we get a palindrome (860054450068).

The spelling of 540042210023 in words is "five hundred forty billion, forty-two million, two hundred ten thousand, twenty-three".