2121310104 has 32 divisors (see below), whose sum is σ = 5304552000. Its totient is φ = 706933152.

The previous prime is 2121310091. The next prime is 2121310153. The reversal of 2121310104 is 4010131212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128007 + ... + 143625.

It is an arithmetic number, because the mean of its divisors is an integer number (165767250).

Almost surely, 2^2121310104 is an apocalyptic number.

2121310104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2121310104 is an abundant number, since it is smaller than the sum of its proper divisors (3183241896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121310104 is a wasteful number, since it uses less digits than its factorization.

2121310104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21287 (or 21283 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2121310104 is about 46057.6823559328. The cubic root of 2121310104 is about 1284.8962260315.

Adding to 2121310104 its reverse (4010131212), we get a palindrome (6131441316).

The spelling of 2121310104 in words is "two billion, one hundred twenty-one million, three hundred ten thousand, one hundred four".