42540453323 has 4 divisors (see below), whose sum is σ = 42570646680. Its totient is φ = 42510259968.

The previous prime is 42540453311. The next prime is 42540453343. The reversal of 42540453323 is 32335404524.

It is a happy number.

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 42540453323 - 2²² = 42536259019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42540453343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15094565 + ... + 15097382.

It is an arithmetic number, because the mean of its divisors is an integer number (10642661670).

Almost surely, 2^42540453323 is an apocalyptic number.

42540453323 is a deficient number, since it is larger than the sum of its proper divisors (30193357).

42540453323 is a wasteful number, since it uses less digits than its factorization.

42540453323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30193356.

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 42540453323 its reverse (32335404524), we get a palindrome (74875857847).

The spelling of 42540453323 in words is "forty-two billion, five hundred forty million, four hundred fifty-three thousand, three hundred twenty-three".