2112021313 has 8 divisors (see below), whose sum is σ = 2144912000. Its totient is φ = 2079284688.

The previous prime is 2112021311. The next prime is 2112021343. The reversal of 2112021313 is 3131202112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112021313 - 2¹ = 2112021311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112021311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10731 + ... + 65872.

It is an arithmetic number, because the mean of its divisors is an integer number (268114000).

Almost surely, 2^2112021313 is an apocalyptic number.

It is an amenable number.

2112021313 is a deficient number, since it is larger than the sum of its proper divisors (32890687).

2112021313 is an equidigital number, since it uses as much as digits as its factorization.

2112021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77031.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2112021313 is about 45956.7330540368. The cubic root of 2112021313 is about 1283.0180477780.

Adding to 2112021313 its reverse (3131202112), we get a palindrome (5243223425).

The spelling of 2112021313 in words is "two billion, one hundred twelve million, twenty-one thousand, three hundred thirteen".