131201202313221 has 8 divisors (see below), whose sum is σ = 174944429894304. Its totient is φ = 87462721470480.

The previous prime is 131201202313201. The next prime is 131201202313229. The reversal of 131201202313221 is 122313202102131.

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

It is not a de Polignac number, because 131201202313221 - 2²¹ = 131201200216069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131201202313191 and 131201202313200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201202313229) 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 7 ways as a sum of consecutive naturals, for example, 1186620090 + ... + 1186730651.

It is an arithmetic number, because the mean of its divisors is an integer number (21868053736788).

Almost surely, 2^{131201202313221} is an apocalyptic number.

It is an amenable number.

131201202313221 is a deficient number, since it is larger than the sum of its proper divisors (43743227581083).

131201202313221 is a wasteful number, since it uses less digits than its factorization.

131201202313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373369171.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 131201202313221 its reverse (122313202102131), we get a palindrome (253514404415352).

The spelling of 131201202313221 in words is "one hundred thirty-one trillion, two hundred one billion, two hundred two million, three hundred thirteen thousand, two hundred twenty-one".