20001100323 has 16 divisors (see below), whose sum is σ = 27395940096. Its totient is φ = 12970349280.

The previous prime is 20001100309. The next prime is 20001100349. The reversal of 20001100323 is 32300110002.

It is a happy number.

It is not a de Polignac number, because 20001100323 - 2¹⁶ = 20001034787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20001100299 and 20001100308.

It is not an unprimeable number, because it can be changed into a prime (20001100363) 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, 454378 + ... + 496448.

It is an arithmetic number, because the mean of its divisors is an integer number (1712246256).

Almost surely, 2^20001100323 is an apocalyptic number.

20001100323 is a deficient number, since it is larger than the sum of its proper divisors (7394839773).

20001100323 is a wasteful number, since it uses less digits than its factorization.

20001100323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46394.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20001100323 its reverse (32300110002), we get a palindrome (52301210325).

The spelling of 20001100323 in words is "twenty billion, one million, one hundred thousand, three hundred twenty-three".