2121134343301 has 4 divisors (see below), whose sum is σ = 2123013117100. Its totient is φ = 2119255569504.

The previous prime is 2121134343299. The next prime is 2121134343323. The reversal of 2121134343301 is 1033434311212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 646136238276 + 1474998105025 = 803826^2 + 1214495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121134343301 - 2¹ = 2121134343299 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 2121134343301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121134343371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939385206 + ... + 939387463.

It is an arithmetic number, because the mean of its divisors is an integer number (530753279275).

Almost surely, 2^{2121134343301} is an apocalyptic number.

It is an amenable number.

2121134343301 is a deficient number, since it is larger than the sum of its proper divisors (1878773799).

2121134343301 is a wasteful number, since it uses less digits than its factorization.

2121134343301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878773798.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 2121134343301 its reverse (1033434311212), we get a palindrome (3154568654513).

The spelling of 2121134343301 in words is "two trillion, one hundred twenty-one billion, one hundred thirty-four million, three hundred forty-three thousand, three hundred one".