131320330221 has 16 divisors (see below), whose sum is σ = 181157333760. Its totient is φ = 84515968320.

The previous prime is 131320330201. The next prime is 131320330237. The reversal of 131320330221 is 122033023131.

It is not a de Polignac number, because 131320330221 - 2⁷ = 131320330093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320330201) 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, 526956 + ... + 735066.

It is an arithmetic number, because the mean of its divisors is an integer number (11322333360).

Almost surely, 2^131320330221 is an apocalyptic number.

It is an amenable number.

131320330221 is a deficient number, since it is larger than the sum of its proper divisors (49837003539).

131320330221 is a wasteful number, since it uses less digits than its factorization.

131320330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215396.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131320330221 its reverse (122033023131), we get a palindrome (253353353352).

The spelling of 131320330221 in words is "one hundred thirty-one billion, three hundred twenty million, three hundred thirty thousand, two hundred twenty-one".