1321224323233 has 4 divisors (see below), whose sum is σ = 1321226653888. Its totient is φ = 1321221992580.

The previous prime is 1321224323227. The next prime is 1321224323261. The reversal of 1321224323233 is 3323234221231.

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.

It is a cyclic number.

It is not a de Polignac number, because 1321224323233 - 2⁵ = 1321224323201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321224323195 and 1321224323204.

It is not an unprimeable number, because it can be changed into a prime (1321224323333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295060 + ... + 1652122.

It is an arithmetic number, because the mean of its divisors is an integer number (330306663472).

Almost surely, 2^{1321224323233} is an apocalyptic number.

It is an amenable number.

1321224323233 is a deficient number, since it is larger than the sum of its proper divisors (2330655).

1321224323233 is an equidigital number, since it uses as much as digits as its factorization.

1321224323233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330654.

The product of its digits is 31104, while the sum is 31.

Adding to 1321224323233 its reverse (3323234221231), we get a palindrome (4644458544464).

The spelling of 1321224323233 in words is "one trillion, three hundred twenty-one billion, two hundred twenty-four million, three hundred twenty-three thousand, two hundred thirty-three".