102130203205 has 12 divisors (see below), whose sum is σ = 126928053252. Its totient is φ = 78886774400.

The previous prime is 102130203199. The next prime is 102130203223. The reversal of 102130203205 is 502302031201.

It can be written as a sum of positive squares in 6 ways, for example, as 9182047329 + 92948155876 = 95823^2 + 304874^2 .

It is not a de Polignac number, because 102130203205 - 2⁹ = 102130202693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12139696 + ... + 12148105.

It is an arithmetic number, because the mean of its divisors is an integer number (10577337771).

Almost surely, 2^102130203205 is an apocalyptic number.

It is an amenable number.

102130203205 is a deficient number, since it is larger than the sum of its proper divisors (24797850047).

102130203205 is an equidigital number, since it uses as much as digits as its factorization.

102130203205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24287864 (or 24287835 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 102130203205 its reverse (502302031201), we get a palindrome (604432234406).

The spelling of 102130203205 in words is "one hundred two billion, one hundred thirty million, two hundred three thousand, two hundred five".