20116453423 has 4 divisors (see below), whose sum is σ = 21945221928. Its totient is φ = 18287684920.

The previous prime is 20116453411. The next prime is 20116453517. The reversal of 20116453423 is 32435461102.

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 20116453423 - 2¹⁷ = 20116322351 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 (20116453823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914384236 + ... + 914384257.

It is an arithmetic number, because the mean of its divisors is an integer number (5486305482).

Almost surely, 2^20116453423 is an apocalyptic number.

20116453423 is a deficient number, since it is larger than the sum of its proper divisors (1828768505).

20116453423 is a wasteful number, since it uses less digits than its factorization.

20116453423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828768504.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 20116453423 in words is "twenty billion, one hundred sixteen million, four hundred fifty-three thousand, four hundred twenty-three".