1320120321133 has 16 divisors (see below), whose sum is σ = 1376569918080. Its totient is φ = 1265017248000.

The previous prime is 1320120321131. The next prime is 1320120321137. The reversal of 1320120321133 is 3311230210231.

It is a cyclic number.

It is not a de Polignac number, because 1320120321133 - 2¹ = 1320120321131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320120321131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646935 + ... + 1748932.

It is an arithmetic number, because the mean of its divisors is an integer number (86035619880).

Almost surely, 2^{1320120321133} is an apocalyptic number.

It is an amenable number.

1320120321133 is a deficient number, since it is larger than the sum of its proper divisors (56449596947).

1320120321133 is a wasteful number, since it uses less digits than its factorization.

1320120321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396148.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1320120321133 its reverse (3311230210231), we get a palindrome (4631350531364).

The spelling of 1320120321133 in words is "one trillion, three hundred twenty billion, one hundred twenty million, three hundred twenty-one thousand, one hundred thirty-three".