42217303823 has 4 divisors (see below), whose sum is σ = 42811913808. Its totient is φ = 41622693840.

The previous prime is 42217303789. The next prime is 42217303879. The reversal of 42217303823 is 32830371224.

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 42217303823 - 2⁸ = 42217303567 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 (42217303423) 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, 297304886 + ... + 297305027.

It is an arithmetic number, because the mean of its divisors is an integer number (10702978452).

Almost surely, 2^42217303823 is an apocalyptic number.

42217303823 is a deficient number, since it is larger than the sum of its proper divisors (594609985).

42217303823 is an equidigital number, since it uses as much as digits as its factorization.

42217303823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594609984.

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 42217303823 in words is "forty-two billion, two hundred seventeen million, three hundred three thousand, eight hundred twenty-three".