42142440023 has 16 divisors (see below), whose sum is σ = 45513861120. Its totient is φ = 38900673504.

The previous prime is 42142440017. The next prime is 42142440073. The reversal of 42142440023 is 32004424124.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42142440023 - 2⁴ = 42142440007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42142439974 and 42142440001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42142440073) 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, 1414640 + ... + 1444122.

It is an arithmetic number, because the mean of its divisors is an integer number (2844616320).

Almost surely, 2^42142440023 is an apocalyptic number.

42142440023 is a deficient number, since it is larger than the sum of its proper divisors (3371421097).

42142440023 is a wasteful number, since it uses less digits than its factorization.

42142440023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31678.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 42142440023 its reverse (32004424124), we get a palindrome (74146864147).

The spelling of 42142440023 in words is "forty-two billion, one hundred forty-two million, four hundred forty thousand, twenty-three".