1321114321 has 4 divisors (see below), whose sum is σ = 1363730944. Its totient is φ = 1278497700.

The previous prime is 1321114313. The next prime is 1321114367. The reversal of 1321114321 is 1234111231.

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: 1234111231 = 20231 ⋅61001.

It is a cyclic number.

It is not a de Polignac number, because 1321114321 - 2³ = 1321114313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321114381) 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, 21308265 + ... + 21308326.

It is an arithmetic number, because the mean of its divisors is an integer number (340932736).

Almost surely, 2^1321114321 is an apocalyptic number.

It is an amenable number.

1321114321 is a deficient number, since it is larger than the sum of its proper divisors (42616623).

1321114321 is an equidigital number, since it uses as much as digits as its factorization.

1321114321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42616622.

The product of its digits is 144, while the sum is 19.

The square root of 1321114321 is about 36347.1363521255. The cubic root of 1321114321 is about 1097.2699022084.

Adding to 1321114321 its reverse (1234111231), we get a palindrome (2555225552).

The spelling of 1321114321 in words is "one billion, three hundred twenty-one million, one hundred fourteen thousand, three hundred twenty-one".