20023041320021 has 8 divisors (see below), whose sum is σ = 20276877250560. Its totient is φ = 19769505257952.

The previous prime is 20023041319991. The next prime is 20023041320033. The reversal of 20023041320021 is 12002314032002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20023041320021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20023041319975 and 20023041320002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023041320621) 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 7 ways as a sum of consecutive naturals, for example, 74832725 + ... + 75099818.

It is an arithmetic number, because the mean of its divisors is an integer number (2534609656320).

Almost surely, 2^{20023041320021} is an apocalyptic number.

It is an amenable number.

20023041320021 is a deficient number, since it is larger than the sum of its proper divisors (253835930539).

20023041320021 is a wasteful number, since it uses less digits than its factorization.

20023041320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149934235.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20023041320021 its reverse (12002314032002), we get a palindrome (32025355352023).

The spelling of 20023041320021 in words is "twenty trillion, twenty-three billion, forty-one million, three hundred twenty thousand, twenty-one".