102130021204 has 12 divisors (see below), whose sum is σ = 179152071028. Its totient is φ = 50943715200.

The previous prime is 102130021193. The next prime is 102130021243. The reversal of 102130021204 is 402120031201.

It can be written as a sum of positive squares in 2 ways, for example, as 311593104 + 101818428100 = 17652^2 + 319090^2 .

It is a super-2 number, since 2×102130021204² (a number of 23 digits) contains 22 as substring.

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, 30321957 + ... + 30325324.

Almost surely, 2^102130021204 is an apocalyptic number.

It is an amenable number.

102130021204 is a deficient number, since it is larger than the sum of its proper divisors (77022049824).

102130021204 is a wasteful number, since it uses less digits than its factorization.

102130021204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60647706 (or 60647704 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102130021204 its reverse (402120031201), we get a palindrome (504250052405).

The spelling of 102130021204 in words is "one hundred two billion, one hundred thirty million, twenty-one thousand, two hundred four".