20203013023 has 4 divisors (see below), whose sum is σ = 20749040440. Its totient is φ = 19656985608.

The previous prime is 20203013021. The next prime is 20203013029. The reversal of 20203013023 is 32031030202.

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 20203013023 - 2¹ = 20203013021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20203012988 and 20203013006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203013021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273013653 + ... + 273013726.

It is an arithmetic number, because the mean of its divisors is an integer number (5187260110).

Almost surely, 2^20203013023 is an apocalyptic number.

20203013023 is a deficient number, since it is larger than the sum of its proper divisors (546027417).

20203013023 is an equidigital number, since it uses as much as digits as its factorization.

20203013023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546027416.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20203013023 its reverse (32031030202), we get a palindrome (52234043225).

The spelling of 20203013023 in words is "twenty billion, two hundred three million, thirteen thousand, twenty-three".