42316451423 has 4 divisors (see below), whose sum is σ = 42690933408. Its totient is φ = 41941969440.

The previous prime is 42316451417. The next prime is 42316451453. The reversal of 42316451423 is 32415461324.

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 42316451423 - 2²⁶ = 42249342559 is a prime.

It is a super-2 number, since 2×42316451423² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42316451413) 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, 187240823 + ... + 187241048.

It is an arithmetic number, because the mean of its divisors is an integer number (10672733352).

Almost surely, 2^42316451423 is an apocalyptic number.

42316451423 is a deficient number, since it is larger than the sum of its proper divisors (374481985).

42316451423 is a wasteful number, since it uses less digits than its factorization.

42316451423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374481984.

The product of its digits is 69120, while the sum is 35.

Subtracting from 42316451423 its reverse (32415461324), we obtain a palindrome (9900990099).

The spelling of 42316451423 in words is "forty-two billion, three hundred sixteen million, four hundred fifty-one thousand, four hundred twenty-three".