1320221131023 has 8 divisors (see below), whose sum is σ = 1820994663600. Its totient is φ = 849797509568.

The previous prime is 1320221131003. The next prime is 1320221131037. The reversal of 1320221131023 is 3201311220231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320221131023 - 2⁹ = 1320221130511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320221131003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7587477678 + ... + 7587477851.

It is an arithmetic number, because the mean of its divisors is an integer number (227624332950).

Almost surely, 2^{1320221131023} is an apocalyptic number.

1320221131023 is a deficient number, since it is larger than the sum of its proper divisors (500773532577).

1320221131023 is a wasteful number, since it uses less digits than its factorization.

1320221131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15174955561.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1320221131023 its reverse (3201311220231), we get a palindrome (4521532351254).

The spelling of 1320221131023 in words is "one trillion, three hundred twenty billion, two hundred twenty-one million, one hundred thirty-one thousand, twenty-three".