2032121212321 has 4 divisors (see below), whose sum is σ = 2032124118292. Its totient is φ = 2032118306352.

The previous prime is 2032121212307. The next prime is 2032121212343. The reversal of 2032121212321 is 1232121212302.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 701974189921 + 1330147022400 = 837839^2 + 1153320^2 .

It is a cyclic number.

It is not a de Polignac number, because 2032121212321 - 2⁷ = 2032121212193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2032121212292 and 2032121212301.

It is not an unprimeable number, because it can be changed into a prime (2032121212391) 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, 304771 + ... + 2038903.

It is an arithmetic number, because the mean of its divisors is an integer number (508031029573).

Almost surely, 2^{2032121212321} is an apocalyptic number.

It is an amenable number.

2032121212321 is a deficient number, since it is larger than the sum of its proper divisors (2905971).

2032121212321 is a wasteful number, since it uses less digits than its factorization.

2032121212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905970.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2032121212321 its reverse (1232121212302), we get a palindrome (3264242424623).

The spelling of 2032121212321 in words is "two trillion, thirty-two billion, one hundred twenty-one million, two hundred twelve thousand, three hundred twenty-one".