20003023231 has 4 divisors (see below), whose sum is σ = 20003315992. Its totient is φ = 20002730472.

The previous prime is 20003023219. The next prime is 20003023237. The reversal of 20003023231 is 13232030002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20003023231 - 2⁵ = 20003023199 is a prime.

It is a super-2 number, since 2×20003023231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003023237) 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, 16585 + ... + 200701.

It is an arithmetic number, because the mean of its divisors is an integer number (5000828998).

Almost surely, 2^20003023231 is an apocalyptic number.

20003023231 is a deficient number, since it is larger than the sum of its proper divisors (292761).

20003023231 is a wasteful number, since it uses less digits than its factorization.

20003023231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292760.

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

Adding to 20003023231 its reverse (13232030002), we get a palindrome (33235053233).

The spelling of 20003023231 in words is "twenty billion, three million, twenty-three thousand, two hundred thirty-one".