1320221113113 has 16 divisors (see below), whose sum is σ = 2013510352256. Its totient is φ = 753757747200.

The previous prime is 1320221113097. The next prime is 1320221113121. The reversal of 1320221113113 is 3113111220231.

It is not a de Polignac number, because 1320221113113 - 2⁴ = 1320221113097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1320221113113.

It is not an unprimeable number, because it can be changed into a prime (1320221113153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27238438 + ... + 27286863.

It is an arithmetic number, because the mean of its divisors is an integer number (125844397016).

Almost surely, 2^{1320221113113} is an apocalyptic number.

It is an amenable number.

1320221113113 is a deficient number, since it is larger than the sum of its proper divisors (693289239143).

1320221113113 is a wasteful number, since it uses less digits than its factorization.

1320221113113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54526464.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1320221113113 its reverse (3113111220231), we get a palindrome (4433332333344).

The spelling of 1320221113113 in words is "one trillion, three hundred twenty billion, two hundred twenty-one million, one hundred thirteen thousand, one hundred thirteen".