20203203023 has 4 divisors (see below), whose sum is σ = 20244350568. Its totient is φ = 20162055480.

The previous prime is 20203202993. The next prime is 20203203049. The reversal of 20203203023 is 32030230202.

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 20203203023 - 2²² = 20199008719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20203202992 and 20203203010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203203323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20573036 + ... + 20574017.

It is an arithmetic number, because the mean of its divisors is an integer number (5061087642).

Almost surely, 2^20203203023 is an apocalyptic number.

20203203023 is a deficient number, since it is larger than the sum of its proper divisors (41147545).

20203203023 is an equidigital number, since it uses as much as digits as its factorization.

20203203023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41147544.

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 20203203023 its reverse (32030230202), we get a palindrome (52233433225).

The spelling of 20203203023 in words is "twenty billion, two hundred three million, two hundred three thousand, twenty-three".