202340411321 has 4 divisors (see below), whose sum is σ = 202357216500. Its totient is φ = 202323606144.

The previous prime is 202340411297. The next prime is 202340411381. The reversal of 202340411321 is 123114043202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123114043202 = 2 ⋅61557021601.

It can be written as a sum of positive squares in 2 ways, for example, as 84062884096 + 118277527225 = 289936^2 + 343915^2 .

It is a cyclic number.

It is not a de Polignac number, because 202340411321 - 2¹⁰ = 202340410297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202340411381) 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, 8384516 + ... + 8408613.

It is an arithmetic number, because the mean of its divisors is an integer number (50589304125).

Almost surely, 2^202340411321 is an apocalyptic number.

It is an amenable number.

202340411321 is a deficient number, since it is larger than the sum of its proper divisors (16805179).

202340411321 is a wasteful number, since it uses less digits than its factorization.

202340411321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16805178.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 202340411321 its reverse (123114043202), we get a palindrome (325454454523).

The spelling of 202340411321 in words is "two hundred two billion, three hundred forty million, four hundred eleven thousand, three hundred twenty-one".