2121310310111 has 8 divisors (see below), whose sum is σ = 2139142970880. Its totient is φ = 2103541681312.

The previous prime is 2121310310023. The next prime is 2121310310113. The reversal of 2121310310111 is 1110130131212.

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 2121310310111 - 2¹⁴ = 2121310293727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121310310111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121310310113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15941456 + ... + 16073973.

It is an arithmetic number, because the mean of its divisors is an integer number (267392871360).

Almost surely, 2^{2121310310111} is an apocalyptic number.

2121310310111 is a deficient number, since it is larger than the sum of its proper divisors (17832660769).

2121310310111 is a wasteful number, since it uses less digits than its factorization.

2121310310111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32015985.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 2121310310111 its reverse (1110130131212), we get a palindrome (3231440441323).

The spelling of 2121310310111 in words is "two trillion, one hundred twenty-one billion, three hundred ten million, three hundred ten thousand, one hundred eleven".