20001113123003 has 16 divisors (see below), whose sum is σ = 21383698804416. Its totient is φ = 18641429391360.

The previous prime is 20001113122999. The next prime is 20001113123023. The reversal of 20001113123003 is 30032131110002.

It is not a de Polignac number, because 20001113123003 - 2² = 20001113122999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001113123023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119231075 + ... + 119398707.

It is an arithmetic number, because the mean of its divisors is an integer number (1336481175276).

Almost surely, 2^{20001113123003} is an apocalyptic number.

20001113123003 is a deficient number, since it is larger than the sum of its proper divisors (1382585681413).

20001113123003 is a wasteful number, since it uses less digits than its factorization.

20001113123003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235894.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20001113123003 its reverse (30032131110002), we get a palindrome (50033244233005).

The spelling of 20001113123003 in words is "twenty trillion, one billion, one hundred thirteen million, one hundred twenty-three thousand, three".