131011443224221 has 8 divisors (see below), whose sum is σ = 154890376225920. Its totient is φ = 108423263357808.

The previous prime is 131011443224219. The next prime is 131011443224237. The reversal of 131011443224221 is 122422344110131.

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

It is not a de Polignac number, because 131011443224221 - 2¹ = 131011443224219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011443624221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322688283601 + ... + 322688284006.

It is an arithmetic number, because the mean of its divisors is an integer number (19361297028240).

Almost surely, 2^{131011443224221} is an apocalyptic number.

It is an amenable number.

131011443224221 is a deficient number, since it is larger than the sum of its proper divisors (23878933001699).

131011443224221 is an equidigital number, since it uses as much as digits as its factorization.

131011443224221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645376567643.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 131011443224221 its reverse (122422344110131), we get a palindrome (253433787334352).

The spelling of 131011443224221 in words is "one hundred thirty-one trillion, eleven billion, four hundred forty-three million, two hundred twenty-four thousand, two hundred twenty-one".