2121304102 has 4 divisors (see below), whose sum is σ = 3181956156. Its totient is φ = 1060652050.

The previous prime is 2121304061. The next prime is 2121304169. The reversal of 2121304102 is 2014031212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530326024 + ... + 530326027.

It is an arithmetic number, because the mean of its divisors is an integer number (795489039).

Almost surely, 2^2121304102 is an apocalyptic number.

2121304102 is a deficient number, since it is larger than the sum of its proper divisors (1060652054).

2121304102 is a wasteful number, since it uses less digits than its factorization.

2121304102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060652053.

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

The square root of 2121304102 is about 46057.6171984613. The cubic root of 2121304102 is about 1284.8950142089.

Adding to 2121304102 its reverse (2014031212), we get a palindrome (4135335314).

The spelling of 2121304102 in words is "two billion, one hundred twenty-one million, three hundred four thousand, one hundred two".