18201111100102 has 8 divisors (see below), whose sum is σ = 31201904743056. Its totient is φ = 7800476185752.

The previous prime is 18201111100031. The next prime is 18201111100169. The reversal of 18201111100102 is 20100111110281.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18201111100102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650039682133 + ... + 650039682160.

It is an arithmetic number, because the mean of its divisors is an integer number (3900238092882).

Almost surely, 2^{18201111100102} is an apocalyptic number.

18201111100102 is a deficient number, since it is larger than the sum of its proper divisors (13000793642954).

18201111100102 is a wasteful number, since it uses less digits than its factorization.

18201111100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300079364302.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 18201111100102 its reverse (20100111110281), we get a palindrome (38301222210383).

The spelling of 18201111100102 in words is "eighteen trillion, two hundred one billion, one hundred eleven million, one hundred thousand, one hundred two".