12120322321 has 8 divisors (see below), whose sum is σ = 12539719080. Its totient is φ = 11701022592.

The previous prime is 12120322273. The next prime is 12120322429. The reversal of 12120322321 is 12322302121.

It can be written as a sum of positive squares in 4 ways, for example, as 765075600 + 11355246721 = 27660^2 + 106561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12120322321 - 2¹¹ = 12120320273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120322021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306541 + ... + 343813.

It is an arithmetic number, because the mean of its divisors is an integer number (1567464885).

Almost surely, 2^12120322321 is an apocalyptic number.

It is an amenable number.

12120322321 is a deficient number, since it is larger than the sum of its proper divisors (419396759).

12120322321 is a wasteful number, since it uses less digits than its factorization.

12120322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48515.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12120322321 its reverse (12322302121), we get a palindrome (24442624442).

The spelling of 12120322321 in words is "twelve billion, one hundred twenty million, three hundred twenty-two thousand, three hundred twenty-one".