20203021233 has 24 divisors (see below), whose sum is σ = 30723713280. Its totient is φ = 12757448160.

The previous prime is 20203021231. The next prime is 20203021247. The reversal of 20203021233 is 33212030202.

It is a happy number.

It is not a de Polignac number, because 20203021233 - 2¹ = 20203021231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20203021231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1714560 + ... + 1726302.

It is an arithmetic number, because the mean of its divisors is an integer number (1280154720).

Almost surely, 2^20203021233 is an apocalyptic number.

It is an amenable number.

20203021233 is a deficient number, since it is larger than the sum of its proper divisors (10520692047).

20203021233 is a wasteful number, since it uses less digits than its factorization.

20203021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21829 (or 21826 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20203021233 its reverse (33212030202), we get a palindrome (53415051435).

The spelling of 20203021233 in words is "twenty billion, two hundred three million, twenty-one thousand, two hundred thirty-three".