3423212321 has 4 divisors (see below), whose sum is σ = 3423346944. Its totient is φ = 3423077700.

The previous prime is 3423212269. The next prime is 3423212323. The reversal of 3423212321 is 1232123243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1232123243 = 13 ⋅94778711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3423212321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3423212323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16265 + ... + 84326.

It is an arithmetic number, because the mean of its divisors is an integer number (855836736).

Almost surely, 2^3423212321 is an apocalyptic number.

It is an amenable number.

3423212321 is a deficient number, since it is larger than the sum of its proper divisors (134623).

3423212321 is a wasteful number, since it uses less digits than its factorization.

3423212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134622.

The product of its digits is 1728, while the sum is 23.

The square root of 3423212321 is about 58508.2243876876. The cubic root of 3423212321 is about 1507.1088226130.

Adding to 3423212321 its reverse (1232123243), we get a palindrome (4655335564).

It can be divided in two parts, 3 and 423212321, that added together give a palindrome (423212324).

The spelling of 3423212321 in words is "three billion, four hundred twenty-three million, two hundred twelve thousand, three hundred twenty-one".