3201244431421 has 4 divisors (see below), whose sum is σ = 3201336739612. Its totient is φ = 3201152123232.

The previous prime is 3201244431419. The next prime is 3201244431467. The reversal of 3201244431421 is 1241344421023.

It is a happy number.

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 1579518590521 + 1621725840900 = 1256789^2 + 1273470^2 .

It is a cyclic number.

It is not a de Polignac number, because 3201244431421 - 2¹ = 3201244431419 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 (3201244431491) 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 3 ways as a sum of consecutive naturals, for example, 46102056 + ... + 46171441.

It is an arithmetic number, because the mean of its divisors is an integer number (800334184903).

Almost surely, 2^{3201244431421} is an apocalyptic number.

It is an amenable number.

3201244431421 is a deficient number, since it is larger than the sum of its proper divisors (92308191).

3201244431421 is an equidigital number, since it uses as much as digits as its factorization.

3201244431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92308190.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 3201244431421 its reverse (1241344421023), we get a palindrome (4442588852444).

The spelling of 3201244431421 in words is "three trillion, two hundred one billion, two hundred forty-four million, four hundred thirty-one thousand, four hundred twenty-one".