1321314233 has 4 divisors (see below), whose sum is σ = 1321666020. Its totient is φ = 1320962448.

The previous prime is 1321314227. The next prime is 1321314287. The reversal of 1321314233 is 3324131231.

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 534904384 + 786409849 = 23128^2 + 28043^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321314233 - 2¹⁴ = 1321297849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321314199 and 1321314208.

It is not an unprimeable number, because it can be changed into a prime (1321317233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170198 + ... + 177791.

It is an arithmetic number, because the mean of its divisors is an integer number (330416505).

Almost surely, 2^1321314233 is an apocalyptic number.

It is an amenable number.

1321314233 is a deficient number, since it is larger than the sum of its proper divisors (351787).

1321314233 is an equidigital number, since it uses as much as digits as its factorization.

1321314233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351786.

The product of its digits is 1296, while the sum is 23.

The square root of 1321314233 is about 36349.8862859294. The cubic root of 1321314233 is about 1097.3252459824.

Adding to 1321314233 its reverse (3324131231), we get a palindrome (4645445464).

The spelling of 1321314233 in words is "one billion, three hundred twenty-one million, three hundred fourteen thousand, two hundred thirty-three".