20002003023 has 32 divisors (see below), whose sum is σ = 27638392320. Its totient is φ = 12858531840.

The previous prime is 20002003013. The next prime is 20002003031. The reversal of 20002003023 is 32030020002.

It is not a de Polignac number, because 20002003023 - 2⁸ = 20002002767 is a prime.

It is a super-2 number, since 2×20002003023² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002003013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13236838 + ... + 13238348.

It is an arithmetic number, because the mean of its divisors is an integer number (863699760).

Almost surely, 2^20002003023 is an apocalyptic number.

20002003023 is a deficient number, since it is larger than the sum of its proper divisors (7636389297).

20002003023 is a wasteful number, since it uses less digits than its factorization.

20002003023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799.

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 20002003023 its reverse (32030020002), we get a palindrome (52032023025).

The spelling of 20002003023 in words is "twenty billion, two million, three thousand, twenty-three".