1320311222233 has 4 divisors (see below), whose sum is σ = 1325219442660. Its totient is φ = 1315403001808.

The previous prime is 1320311222207. The next prime is 1320311222257. The reversal of 1320311222233 is 3322221130231.

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 400077755289 + 920233466944 = 632517^2 + 959288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320311222233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320311222198 and 1320311222207.

It is not an unprimeable number, because it can be changed into a prime (1320311220233) 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, 2454109810 + ... + 2454110347.

It is an arithmetic number, because the mean of its divisors is an integer number (331304860665).

Almost surely, 2^{1320311222233} is an apocalyptic number.

It is an amenable number.

1320311222233 is a deficient number, since it is larger than the sum of its proper divisors (4908220427).

1320311222233 is an equidigital number, since it uses as much as digits as its factorization.

1320311222233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4908220426.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1320311222233 its reverse (3322221130231), we get a palindrome (4642532352464).

The spelling of 1320311222233 in words is "one trillion, three hundred twenty billion, three hundred eleven million, two hundred twenty-two thousand, two hundred thirty-three".