3442121321 has 4 divisors (see below), whose sum is σ = 3442432212. Its totient is φ = 3441810432.

The previous prime is 3442121311. The next prime is 3442121323. The reversal of 3442121321 is 1231212443.

3442121321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2003815696 + 1438305625 = 44764^2 + 37925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3442121321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3442121323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138200 + ... + 161193.

It is an arithmetic number, because the mean of its divisors is an integer number (860608053).

Almost surely, 2^3442121321 is an apocalyptic number.

It is an amenable number.

3442121321 is a deficient number, since it is larger than the sum of its proper divisors (310891).

3442121321 is a wasteful number, since it uses less digits than its factorization.

3442121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310890.

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

The square root of 3442121321 is about 58669.5945187965. The cubic root of 3442121321 is about 1509.8786974761.

Adding to 3442121321 its reverse (1231212443), we get a palindrome (4673333764).

The spelling of 3442121321 in words is "three billion, four hundred forty-two million, one hundred twenty-one thousand, three hundred twenty-one".