102111320203 has 16 divisors (see below), whose sum is σ = 107086896000. Its totient is φ = 97235453952.

The previous prime is 102111320197. The next prime is 102111320221. The reversal of 102111320203 is 302023111201.

It is not a de Polignac number, because 102111320203 - 2²⁵ = 102077765771 is a prime.

It is a super-2 number, since 2×102111320203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102111320803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2104351 + ... + 2152327.

It is an arithmetic number, because the mean of its divisors is an integer number (6692931000).

Almost surely, 2^102111320203 is an apocalyptic number.

102111320203 is a deficient number, since it is larger than the sum of its proper divisors (4975575797).

102111320203 is an equidigital number, since it uses as much as digits as its factorization.

102111320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49014.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102111320203 its reverse (302023111201), we get a palindrome (404134431404).

The spelling of 102111320203 in words is "one hundred two billion, one hundred eleven million, three hundred twenty thousand, two hundred three".