131201420213421 has 24 divisors (see below), whose sum is σ = 190388704806144. Its totient is φ = 87064390771200.

The previous prime is 131201420213371. The next prime is 131201420213497. The reversal of 131201420213421 is 124312024102131.

131201420213421 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 0 + 1 + 4 + 20 + 213 + 421 = 666.

It is not a de Polignac number, because 131201420213421 - 2¹⁴ = 131201420197037 is a prime.

It is a super-2 number, since 2×131201420213421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201420213321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34603005 + ... + 38206946.

It is an arithmetic number, because the mean of its divisors is an integer number (7932862700256).

Almost surely, 2^{131201420213421} is an apocalyptic number.

It is an amenable number.

131201420213421 is a deficient number, since it is larger than the sum of its proper divisors (59187284592723).

131201420213421 is a wasteful number, since it uses less digits than its factorization.

131201420213421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72810881 (or 72810878 counting only the distinct ones).

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

Adding to 131201420213421 its reverse (124312024102131), we get a palindrome (255513444315552).

The spelling of 131201420213421 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty million, two hundred thirteen thousand, four hundred twenty-one".