20023111003 has 16 divisors (see below), whose sum is σ = 24233554944. Its totient is φ = 16150492800.

The previous prime is 20023110997. The next prime is 20023111051. The reversal of 20023111003 is 30011132002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20023111003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20023112003) 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 15 ways as a sum of consecutive naturals, for example, 1132078 + ... + 1149628.

It is an arithmetic number, because the mean of its divisors is an integer number (1514597184).

Almost surely, 2^20023111003 is an apocalyptic number.

20023111003 is a deficient number, since it is larger than the sum of its proper divisors (4210443941).

20023111003 is a wasteful number, since it uses less digits than its factorization.

20023111003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27162.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20023111003 its reverse (30011132002), we get a palindrome (50034243005).

The spelling of 20023111003 in words is "twenty billion, twenty-three million, one hundred eleven thousand, three".