131201204033421 has 6 divisors (see below), whose sum is σ = 189512850270510. Its totient is φ = 87467469355608.

The previous prime is 131201204033381. The next prime is 131201204033443. The reversal of 131201204033421 is 124330402102131.

131201204033421 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 0 + 1 + 204 + 0 + 33 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 107939923263396 + 23261280770025 = 10389414^2 + 4822995^2 .

It is not a de Polignac number, because 131201204033421 - 2⁷ = 131201204033293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201204033461) 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, 7288955779626 + ... + 7288955779643.

It is an arithmetic number, because the mean of its divisors is an integer number (31585475045085).

Almost surely, 2^{131201204033421} is an apocalyptic number.

It is an amenable number.

131201204033421 is a deficient number, since it is larger than the sum of its proper divisors (58311646237089).

131201204033421 is a wasteful number, since it uses less digits than its factorization.

131201204033421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14577911559275 (or 14577911559272 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 131201204033421 its reverse (124330402102131), we get a palindrome (255531606135552).

The spelling of 131201204033421 in words is "one hundred thirty-one trillion, two hundred one billion, two hundred four million, thirty-three thousand, four hundred twenty-one".