2121310102 has 12 divisors (see below), whose sum is σ = 3326328180. Its totient is φ = 1014539108.

The previous prime is 2121310091. The next prime is 2121310153. The reversal of 2121310102 is 2010131212.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1001452 + ... + 1003567.

It is an arithmetic number, because the mean of its divisors is an integer number (277194015).

Almost surely, 2^2121310102 is an apocalyptic number.

2121310102 is a deficient number, since it is larger than the sum of its proper divisors (1205018078).

2121310102 is a wasteful number, since it uses less digits than its factorization.

2121310102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005067 (or 2005044 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2121310102 is about 46057.6823342209. The cubic root of 2121310102 is about 1284.8962256277.

Adding to 2121310102 its reverse (2010131212), we get a palindrome (4131441314).

The spelling of 2121310102 in words is "two billion, one hundred twenty-one million, three hundred ten thousand, one hundred two".