2121300311 has 8 divisors (see below), whose sum is σ = 2291922864. Its totient is φ = 1951741440.

The previous prime is 2121300289. The next prime is 2121300329. The reversal of 2121300311 is 1130031212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121300311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121300371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261770 + ... + 269751.

It is an arithmetic number, because the mean of its divisors is an integer number (286490358).

Almost surely, 2^2121300311 is an apocalyptic number.

2121300311 is a deficient number, since it is larger than the sum of its proper divisors (170622553).

2121300311 is a wasteful number, since it uses less digits than its factorization.

2121300311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531841.

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

The square root of 2121300311 is about 46057.5760434698. The cubic root of 2121300311 is about 1284.8942487930.

Adding to 2121300311 its reverse (1130031212), we get a palindrome (3251331523).

The spelling of 2121300311 in words is "two billion, one hundred twenty-one million, three hundred thousand, three hundred eleven".