131342212122021 has 12 divisors (see below), whose sum is σ = 197965073343648. Its totient is φ = 83754454106664.

The previous prime is 131342212121993. The next prime is 131342212122029. The reversal of 131342212122021 is 120221212243131.

131342212122021 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 422 + 1 + 212 + 2 + 0 + 21 = 666.

It is not a de Polignac number, because 131342212122021 - 2⁷ = 131342212121893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131342212122029) 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 11 ways as a sum of consecutive naturals, for example, 317251719895 + ... + 317251720308.

It is an arithmetic number, because the mean of its divisors is an integer number (16497089445304).

Almost surely, 2^{131342212122021} is an apocalyptic number.

It is an amenable number.

131342212122021 is a deficient number, since it is larger than the sum of its proper divisors (66622861221627).

131342212122021 is a wasteful number, since it uses less digits than its factorization.

131342212122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634503440232 (or 634503440229 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 131342212122021 its reverse (120221212243131), we get a palindrome (251563424365152).

The spelling of 131342212122021 in words is "one hundred thirty-one trillion, three hundred forty-two billion, two hundred twelve million, one hundred twenty-two thousand, twenty-one".