102111203321 has 16 divisors (see below), whose sum is σ = 110851276800. Its totient is φ = 93743144208.

The previous prime is 102111203317. The next prime is 102111203323. The reversal of 102111203321 is 123302111201.

It is a cyclic number.

It is not a de Polignac number, because 102111203321 - 2² = 102111203317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102111203321.

It is not an unprimeable number, because it can be changed into a prime (102111203323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388301 + ... + 595818.

It is an arithmetic number, because the mean of its divisors is an integer number (6928204800).

Almost surely, 2^102111203321 is an apocalyptic number.

It is an amenable number.

102111203321 is a deficient number, since it is larger than the sum of its proper divisors (8740073479).

102111203321 is a wasteful number, since it uses less digits than its factorization.

102111203321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984308.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 102111203321 its reverse (123302111201), we get a palindrome (225413314522).

The spelling of 102111203321 in words is "one hundred two billion, one hundred eleven million, two hundred three thousand, three hundred twenty-one".