131413313013421 has 4 divisors (see below), whose sum is σ = 131413603589532. Its totient is φ = 131413022437312.

The previous prime is 131413313013407. The next prime is 131413313013439. The reversal of 131413313013421 is 124310313314131.

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 99574254116100 + 31839058897321 = 9978690^2 + 5642611^2 .

It is a cyclic number.

It is not a de Polignac number, because 131413313013421 - 2¹¹ = 131413313011373 is a prime.

It is a super-2 number, since 2×131413313013421² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131413353013421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144608620 + ... + 145514533.

It is an arithmetic number, because the mean of its divisors is an integer number (32853400897383).

Almost surely, 2^{131413313013421} is an apocalyptic number.

It is an amenable number.

131413313013421 is a deficient number, since it is larger than the sum of its proper divisors (290576111).

131413313013421 is an equidigital number, since it uses as much as digits as its factorization.

131413313013421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290576110.

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 131413313013421 its reverse (124310313314131), we get a palindrome (255723626327552).

The spelling of 131413313013421 in words is "one hundred thirty-one trillion, four hundred thirteen billion, three hundred thirteen million, thirteen thousand, four hundred twenty-one".