2121310310 has 64 divisors (see below), whose sum is σ = 4467778560. Its totient is φ = 710183040.

The previous prime is 2121310277. The next prime is 2121310327. The reversal of 2121310310 is 130131212.

It is a super-2 number, since 2×2121310310² = 8999914862624592200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 529796 + ... + 533784.

It is an arithmetic number, because the mean of its divisors is an integer number (69809040).

Almost surely, 2^2121310310 is an apocalyptic number.

2121310310 is an abundant number, since it is smaller than the sum of its proper divisors (2346468250).

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

2121310310 is a wasteful number, since it uses less digits than its factorization.

2121310310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2121310310 is about 46057.6845922589. The cubic root of 2121310310 is about 1284.8962676235.

Adding to 2121310310 its reverse (130131212), we get a palindrome (2251441522).

The spelling of 2121310310 in words is "two billion, one hundred twenty-one million, three hundred ten thousand, three hundred ten".