20404134424023 has 8 divisors (see below), whose sum is σ = 31092014360448. Its totient is φ = 11659505385144.

The previous prime is 20404134423971. The next prime is 20404134424033. The reversal of 20404134424023 is 32042443140402.

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

It is not a de Polignac number, because 20404134424023 - 2¹² = 20404134419927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20404134424033) 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, 485812724361 + ... + 485812724402.

It is an arithmetic number, because the mean of its divisors is an integer number (3886501795056).

Almost surely, 2^{20404134424023} is an apocalyptic number.

20404134424023 is a deficient number, since it is larger than the sum of its proper divisors (10687879936425).

20404134424023 is an equidigital number, since it uses as much as digits as its factorization.

20404134424023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971625448773.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 20404134424023 its reverse (32042443140402), we get a palindrome (52446577564425).

The spelling of 20404134424023 in words is "twenty trillion, four hundred four billion, one hundred thirty-four million, four hundred twenty-four thousand, twenty-three".