1320113130221 has 4 divisors (see below), whose sum is σ = 1324101387744. Its totient is φ = 1316124872700.

The previous prime is 1320113130187. The next prime is 1320113130233. The reversal of 1320113130221 is 1220313110231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1320113130221 - 2³⁰ = 1319039388397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320113130193 and 1320113130202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320113130251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1994128265 + ... + 1994128926.

It is an arithmetic number, because the mean of its divisors is an integer number (331025346936).

Almost surely, 2^{1320113130221} is an apocalyptic number.

It is an amenable number.

1320113130221 is a deficient number, since it is larger than the sum of its proper divisors (3988257523).

1320113130221 is an equidigital number, since it uses as much as digits as its factorization.

1320113130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988257522.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1320113130221 its reverse (1220313110231), we get a palindrome (2540426240452).

The spelling of 1320113130221 in words is "one trillion, three hundred twenty billion, one hundred thirteen million, one hundred thirty thousand, two hundred twenty-one".