42423071721307 has 4 divisors (see below), whose sum is σ = 42683335965160. Its totient is φ = 42162807477456.

The previous prime is 42423071721271. The next prime is 42423071721311. The reversal of 42423071721307 is 70312717032424.

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 42423071721307 - 2⁷ = 42423071721179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42423071721337) 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, 130132121682 + ... + 130132122007.

It is an arithmetic number, because the mean of its divisors is an integer number (10670833991290).

Almost surely, 2^{42423071721307} is an apocalyptic number.

42423071721307 is a deficient number, since it is larger than the sum of its proper divisors (260264243853).

42423071721307 is a wasteful number, since it uses less digits than its factorization.

42423071721307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260264243852.

The product of its (nonzero) digits is 395136, while the sum is 43.

The spelling of 42423071721307 in words is "forty-two trillion, four hundred twenty-three billion, seventy-one million, seven hundred twenty-one thousand, three hundred seven".