131342440213401 has 4 divisors (see below), whose sum is σ = 175123253617872. Its totient is φ = 87561626808932.

The previous prime is 131342440213367. The next prime is 131342440213403. The reversal of 131342440213401 is 104312044243131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131342440213401 - 2⁶ = 131342440213337 is a prime.

It is a super-2 number, since 2×131342440213401² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131342440213403) 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, 21890406702231 + ... + 21890406702236.

It is an arithmetic number, because the mean of its divisors is an integer number (43780813404468).

Almost surely, 2^{131342440213401} is an apocalyptic number.

It is an amenable number.

131342440213401 is a deficient number, since it is larger than the sum of its proper divisors (43780813404471).

131342440213401 is an equidigital number, since it uses as much as digits as its factorization.

131342440213401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43780813404470.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 131342440213401 its reverse (104312044243131), we get a palindrome (235654484456532).

The spelling of 131342440213401 in words is "one hundred thirty-one trillion, three hundred forty-two billion, four hundred forty million, two hundred thirteen thousand, four hundred one".