1321120441233 has 12 divisors (see below), whose sum is σ = 1908300775680. Its totient is φ = 880739717496.

The previous prime is 1321120441141. The next prime is 1321120441327. The reversal of 1321120441233 is 3321440211231.

1321120441233 is a `hidden beast` number, since 1 + 3 + 2 + 11 + 204 + 412 + 33 = 666.

It is not a de Polignac number, because 1321120441233 - 2⁸ = 1321120440977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1321120441197 and 1321120441206.

It is not an unprimeable number, because it can be changed into a prime (1321120441633) 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 11 ways as a sum of consecutive naturals, for example, 699628 + ... + 1769666.

It is an arithmetic number, because the mean of its divisors is an integer number (159025064640).

Almost surely, 2^{1321120441233} is an apocalyptic number.

It is an amenable number.

1321120441233 is a deficient number, since it is larger than the sum of its proper divisors (587180334447).

1321120441233 is a wasteful number, since it uses less digits than its factorization.

1321120441233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207228 (or 1207225 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1321120441233 its reverse (3321440211231), we get a palindrome (4642560652464).

The spelling of 1321120441233 in words is "one trillion, three hundred twenty-one billion, one hundred twenty million, four hundred forty-one thousand, two hundred thirty-three".