20001110233 has 8 divisors (see below), whose sum is σ = 21892767176. Its totient is φ = 18159897600.

The previous prime is 20001110221. The next prime is 20001110243. The reversal of 20001110233 is 33201110002.

It can be written as a sum of positive squares in 4 ways, for example, as 3320871129 + 16680239104 = 57627^2 + 129152^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20001110233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001110243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12610248 + ... + 12611833.

It is an arithmetic number, because the mean of its divisors is an integer number (2736595897).

Almost surely, 2^20001110233 is an apocalyptic number.

It is an amenable number.

20001110233 is a deficient number, since it is larger than the sum of its proper divisors (1891656943).

20001110233 is a wasteful number, since it uses less digits than its factorization.

20001110233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25222155.

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

Adding to 20001110233 its reverse (33201110002), we get a palindrome (53202220235).

The spelling of 20001110233 in words is "twenty billion, one million, one hundred ten thousand, two hundred thirty-three".