20031233203 has 4 divisors (see below), whose sum is σ = 20677402048. Its totient is φ = 19385064360.

The previous prime is 20031233179. The next prime is 20031233237. The reversal of 20031233203 is 30233213002.

It is a happy number.

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 20031233203 - 2⁵ = 20031233171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20034233203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323084376 + ... + 323084437.

It is an arithmetic number, because the mean of its divisors is an integer number (5169350512).

Almost surely, 2^20031233203 is an apocalyptic number.

20031233203 is a deficient number, since it is larger than the sum of its proper divisors (646168845).

20031233203 is an equidigital number, since it uses as much as digits as its factorization.

20031233203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646168844.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20031233203 its reverse (30233213002), we get a palindrome (50264446205).

The spelling of 20031233203 in words is "twenty billion, thirty-one million, two hundred thirty-three thousand, two hundred three".