20203221023023 has 4 divisors (see below), whose sum is σ = 20584413872568. Its totient is φ = 19822028173480.

The previous prime is 20203221023021. The next prime is 20203221023059. The reversal of 20203221023023 is 32032012230202.

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 20203221023023 - 2¹ = 20203221023021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20203221022985 and 20203221023003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203221023021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190596424693 + ... + 190596424798.

It is an arithmetic number, because the mean of its divisors is an integer number (5146103468142).

Almost surely, 2^{20203221023023} is an apocalyptic number.

20203221023023 is a deficient number, since it is larger than the sum of its proper divisors (381192849545).

20203221023023 is an equidigital number, since it uses as much as digits as its factorization.

20203221023023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381192849544.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20203221023023 its reverse (32032012230202), we get a palindrome (52235233253225).

The spelling of 20203221023023 in words is "twenty trillion, two hundred three billion, two hundred twenty-one million, twenty-three thousand, twenty-three".