42002454300523 has 4 divisors (see below), whose sum is σ = 42002752608160. Its totient is φ = 42002155992888.

The previous prime is 42002454300511. The next prime is 42002454300551. The reversal of 42002454300523 is 32500345420024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42002454300523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42002454300503) 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, 148942515 + ... + 149224252.

It is an arithmetic number, because the mean of its divisors is an integer number (10500688152040).

Almost surely, 2^{42002454300523} is an apocalyptic number.

42002454300523 is a deficient number, since it is larger than the sum of its proper divisors (298307637).

42002454300523 is a wasteful number, since it uses less digits than its factorization.

42002454300523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298307636.

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 42002454300523 its reverse (32500345420024), we get a palindrome (74502799720547).

The spelling of 42002454300523 in words is "forty-two trillion, two billion, four hundred fifty-four million, three hundred thousand, five hundred twenty-three".