131002541113221 has 6 divisors (see below), whose sum is σ = 189225892719110. Its totient is φ = 87335027408808.

The previous prime is 131002541113211. The next prime is 131002541113267. The reversal of 131002541113221 is 122311145200131.

131002541113221 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 0 + 2 + 541 + 113 + 2 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65827032384996 + 65175508728225 = 8113386^2 + 8073135^2 .

It is a de Polignac number, because none of the positive numbers 2^k-131002541113221 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 (131002541113211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7277918950726 + ... + 7277918950743.

Almost surely, 2^{131002541113221} is an apocalyptic number.

It is an amenable number.

131002541113221 is a deficient number, since it is larger than the sum of its proper divisors (58223351605889).

131002541113221 is a wasteful number, since it uses less digits than its factorization.

131002541113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14555837901475 (or 14555837901472 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 131002541113221 its reverse (122311145200131), we get a palindrome (253313686313352).

The spelling of 131002541113221 in words is "one hundred thirty-one trillion, two billion, five hundred forty-one million, one hundred thirteen thousand, two hundred twenty-one".