131413414021 has 4 divisors (see below), whose sum is σ = 131614660332. Its totient is φ = 131212167712.

The previous prime is 131413414009. The next prime is 131413414051. The reversal of 131413414021 is 120414314131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82806393121 + 48607020900 = 287761^2 + 220470^2 .

It is a cyclic number.

It is not a de Polignac number, because 131413414021 - 2¹⁹ = 131412889733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131413414051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100622176 + ... + 100623481.

It is an arithmetic number, because the mean of its divisors is an integer number (32903665083).

Almost surely, 2^131413414021 is an apocalyptic number.

It is an amenable number.

131413414021 is a deficient number, since it is larger than the sum of its proper divisors (201246311).

131413414021 is an equidigital number, since it uses as much as digits as its factorization.

131413414021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201246310.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 131413414021 its reverse (120414314131), we get a palindrome (251827728152).

The spelling of 131413414021 in words is "one hundred thirty-one billion, four hundred thirteen million, four hundred fourteen thousand, twenty-one".