20031023003 has 4 divisors (see below), whose sum is σ = 20058576720. Its totient is φ = 20003469288.

The previous prime is 20031022997. The next prime is 20031023029. The reversal of 20031023003 is 30032013002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20031023003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20031023053) 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, 13775768 + ... + 13777221.

It is an arithmetic number, because the mean of its divisors is an integer number (5014644180).

Almost surely, 2^20031023003 is an apocalyptic number.

20031023003 is a deficient number, since it is larger than the sum of its proper divisors (27553717).

20031023003 is an equidigital number, since it uses as much as digits as its factorization.

20031023003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27553716.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20031023003 its reverse (30032013002), we get a palindrome (50063036005).

The spelling of 20031023003 in words is "twenty billion, thirty-one million, twenty-three thousand, three".