20423014442399 has 8 divisors (see below), whose sum is σ = 20478802100400. Its totient is φ = 20367272572416.

The previous prime is 20423014442357. The next prime is 20423014442431. The reversal of 20423014442399 is 99324441032402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20423014442399 - 2⁸ = 20423014442143 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 (20423014442329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10553624 + ... + 12337949.

It is an arithmetic number, because the mean of its divisors is an integer number (2559850262550).

Almost surely, 2^{20423014442399} is an apocalyptic number.

20423014442399 is a deficient number, since it is larger than the sum of its proper divisors (55787658001).

20423014442399 is a wasteful number, since it uses less digits than its factorization.

20423014442399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22894009.

The product of its (nonzero) digits is 1492992, while the sum is 47.

The spelling of 20423014442399 in words is "twenty trillion, four hundred twenty-three billion, fourteen million, four hundred forty-two thousand, three hundred ninety-nine".