2130320221331 has 4 divisors (see below), whose sum is σ = 2133485630952. Its totient is φ = 2127154811712.

The previous prime is 2130320221327. The next prime is 2130320221397. The reversal of 2130320221331 is 1331220230312.

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 2130320221331 - 2² = 2130320221327 is a prime.

It is a super-2 number, since 2×2130320221331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2130320221297 and 2130320221306.

It is not an unprimeable number, because it can be changed into a prime (2130320221831) 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, 1582703801 + ... + 1582705146.

It is an arithmetic number, because the mean of its divisors is an integer number (533371407738).

Almost surely, 2^{2130320221331} is an apocalyptic number.

2130320221331 is a deficient number, since it is larger than the sum of its proper divisors (3165409621).

2130320221331 is an equidigital number, since it uses as much as digits as its factorization.

2130320221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165409620.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2130320221331 its reverse (1331220230312), we get a palindrome (3461540451643).

The spelling of 2130320221331 in words is "two trillion, one hundred thirty billion, three hundred twenty million, two hundred twenty-one thousand, three hundred thirty-one".