2121310412 has 24 divisors (see below), whose sum is σ = 3999147936. Its totient is φ = 978749568.

The previous prime is 2121310393. The next prime is 2121310421. The reversal of 2121310412 is 2140131212.

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, 252593 + ... + 260855.

It is an arithmetic number, because the mean of its divisors is an integer number (166631164).

Almost surely, 2^2121310412 is an apocalyptic number.

It is an amenable number.

2121310412 is a deficient number, since it is larger than the sum of its proper divisors (1877837524).

2121310412 is a wasteful number, since it uses less digits than its factorization.

2121310412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13217 (or 13215 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2121310412 is about 46057.6856995659. The cubic root of 2121310412 is about 1284.8962882176.

Adding to 2121310412 its reverse (2140131212), we get a palindrome (4261441624).

The spelling of 2121310412 in words is "two billion, one hundred twenty-one million, three hundred ten thousand, four hundred twelve".