131020214330421 has 24 divisors (see below), whose sum is σ = 203810099203256. Its totient is φ = 80627477293440.

The previous prime is 131020214330399. The next prime is 131020214330443. The reversal of 131020214330421 is 124033412020131.

131020214330421 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 20 + 214 + 3 + 3 + 0 + 421 = 666.

It is an interprime number because it is at equal distance from previous prime (131020214330399) and next prime (131020214330443).

It can be written as a sum of positive squares in 4 ways, for example, as 38696673042225 + 92323541288196 = 6220665^2 + 9608514^2 .

It is not a de Polignac number, because 131020214330421 - 2¹⁹ = 131020213806133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020214430421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26362071 + ... + 30935403.

Almost surely, 2^{131020214330421} is an apocalyptic number.

It is an amenable number.

131020214330421 is a deficient number, since it is larger than the sum of its proper divisors (72789884872835).

131020214330421 is a wasteful number, since it uses less digits than its factorization.

131020214330421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818213 (or 4818210 counting only the distinct ones).

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

Adding to 131020214330421 its reverse (124033412020131), we get a palindrome (255053626350552).

The spelling of 131020214330421 in words is "one hundred thirty-one trillion, twenty billion, two hundred fourteen million, three hundred thirty thousand, four hundred twenty-one".