20001100313203 has 4 divisors (see below), whose sum is σ = 20001109668640. Its totient is φ = 20001090957768.

The previous prime is 20001100313189. The next prime is 20001100313219. The reversal of 20001100313203 is 30231300110002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20001100313203 - 2²¹ = 20001098216051 is a prime.

It is a super-2 number, since 2×20001100313203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001100313903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282193 + ... + 6331021.

It is an arithmetic number, because the mean of its divisors is an integer number (5000277417160).

Almost surely, 2^{20001100313203} is an apocalyptic number.

20001100313203 is a deficient number, since it is larger than the sum of its proper divisors (9355437).

20001100313203 is an equidigital number, since it uses as much as digits as its factorization.

20001100313203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9355436.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20001100313203 its reverse (30231300110002), we get a palindrome (50232400423205).

The spelling of 20001100313203 in words is "twenty trillion, one billion, one hundred million, three hundred thirteen thousand, two hundred three".