20001100110003 has 24 divisors (see below), whose sum is σ = 30174218081280. Its totient is φ = 12742634073840.

The previous prime is 20001100109923. The next prime is 20001100110007. The reversal of 20001100110003 is 30001100110002.

It is not a de Polignac number, because 20001100110003 - 2⁸ = 20001100109747 is a prime.

It is a super-2 number, since 2×20001100110003² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20001100110007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44056323 + ... + 44507996.

It is an arithmetic number, because the mean of its divisors is an integer number (1257259086720).

Almost surely, 2^{20001100110003} is an apocalyptic number.

20001100110003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20001100110003 is a deficient number, since it is larger than the sum of its proper divisors (10173117971277).

20001100110003 is a wasteful number, since it uses less digits than its factorization.

20001100110003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88565439 (or 88565436 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 20001100110003 its reverse (30001100110002), we get a palindrome (50002200220005).

Subtracting 20001100110003 from its reverse (30001100110002), we obtain a palindrome (9999999999999).

The spelling of 20001100110003 in words is "twenty trillion, one billion, one hundred million, one hundred ten thousand, three".