1320322211331 has 4 divisors (see below), whose sum is σ = 1760429615112. Its totient is φ = 880214807552.

The previous prime is 1320322211303. The next prime is 1320322211339. The reversal of 1320322211331 is 1331122230231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320322211331 - 2⁹ = 1320322210819 is a prime.

It is a super-2 number, since 2×1320322211331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320322211339) 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, 220053701886 + ... + 220053701891.

It is an arithmetic number, because the mean of its divisors is an integer number (440107403778).

Almost surely, 2^{1320322211331} is an apocalyptic number.

1320322211331 is a deficient number, since it is larger than the sum of its proper divisors (440107403781).

1320322211331 is an equidigital number, since it uses as much as digits as its factorization.

1320322211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440107403780.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1320322211331 its reverse (1331122230231), we get a palindrome (2651444441562).

The spelling of 1320322211331 in words is "one trillion, three hundred twenty billion, three hundred twenty-two million, two hundred eleven thousand, three hundred thirty-one".