18201110001 has 8 divisors (see below), whose sum is σ = 24453400224. Its totient is φ = 12041446560.

The previous prime is 18201109987. The next prime is 18201110051. The reversal of 18201110001 is 10001110281.

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

It is not a de Polignac number, because 18201110001 - 2²¹ = 18199012849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18201110051) 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, 23156236 + ... + 23157021.

It is an arithmetic number, because the mean of its divisors is an integer number (3056675028).

Almost surely, 2^18201110001 is an apocalyptic number.

It is an amenable number.

18201110001 is a deficient number, since it is larger than the sum of its proper divisors (6252290223).

18201110001 is a wasteful number, since it uses less digits than its factorization.

18201110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46313391.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 18201110001 its reverse (10001110281), we get a palindrome (28202220282).

The spelling of 18201110001 in words is "eighteen billion, two hundred one million, one hundred ten thousand, one".