131322220202231 has 8 divisors (see below), whose sum is σ = 131388418497024. Its totient is φ = 131256023303800.

The previous prime is 131322220202221. The next prime is 131322220202311. The reversal of 131322220202231 is 132202022223131.

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

It is a cyclic number.

It is not a de Polignac number, because 131322220202231 - 2⁶ = 131322220202167 is a prime.

It is a super-2 number, since 2×131322220202231² (a number of 29 digits) contains 22 as substring.

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 131322220202231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131322220202221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223996826 + ... + 224582328.

It is an arithmetic number, because the mean of its divisors is an integer number (16423552312128).

Almost surely, 2^{131322220202231} is an apocalyptic number.

131322220202231 is a deficient number, since it is larger than the sum of its proper divisors (66198294793).

131322220202231 is a wasteful number, since it uses less digits than its factorization.

131322220202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698181.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 131322220202231 its reverse (132202022223131), we get a palindrome (263524242425362).

The spelling of 131322220202231 in words is "one hundred thirty-one trillion, three hundred twenty-two billion, two hundred twenty million, two hundred two thousand, two hundred thirty-one".