20003012321023 has 2 divisors, whose sum is σ = 20003012321024. Its totient is φ = 20003012321022.

The previous prime is 20003012320957. The next prime is 20003012321161. The reversal of 20003012321023 is 32012321030002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20003012321023 - 2¹³ = 20003012312831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20003012331023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001506160511 + 10001506160512.

It is an arithmetic number, because the mean of its divisors is an integer number (10001506160512).

Almost surely, 2^{20003012321023} is an apocalyptic number.

20003012321023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003012321023 is an equidigital number, since it uses as much as digits as its factorization.

20003012321023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20003012321023 its reverse (32012321030002), we get a palindrome (52015333351025).

The spelling of 20003012321023 in words is "twenty trillion, three billion, twelve million, three hundred twenty-one thousand, twenty-three".