131141123230221 has 48 divisors (see below), whose sum is σ = 205491839310576. Its totient is φ = 80111016050688.

The previous prime is 131141123230207. The next prime is 131141123230261. The reversal of 131141123230221 is 122032321141131.

131141123230221 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 4 + 112 + 323 + 0 + 221 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 40203347853321 + 90937775376900 = 6340611^2 + 9536130^2 .

It is not a de Polignac number, because 131141123230221 - 2¹⁵ = 131141123197453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131141123230261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 764705941 + ... + 764877413.

It is an arithmetic number, because the mean of its divisors is an integer number (4281079985637).

Almost surely, 2^{131141123230221} is an apocalyptic number.

It is an amenable number.

131141123230221 is a deficient number, since it is larger than the sum of its proper divisors (74350716080355).

131141123230221 is a wasteful number, since it uses less digits than its factorization.

131141123230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219342 (or 219339 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 131141123230221 its reverse (122032321141131), we get a palindrome (253173444371352).

The spelling of 131141123230221 in words is "one hundred thirty-one trillion, one hundred forty-one billion, one hundred twenty-three million, two hundred thirty thousand, two hundred twenty-one".