131404424340425 has 24 divisors (see below), whose sum is σ = 173197588111416. Its totient is φ = 98554822000640.

The previous prime is 131404424340349. The next prime is 131404424340437. The reversal of 131404424340425 is 524043424404131.

It can be written as a sum of positive squares in 12 ways, for example, as 17830452102544 + 113573972237881 = 4222612^2 + 10657109^2 .

It is not a de Polignac number, because 131404424340425 - 2²⁰ = 131404423291849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 601421672 + ... + 601640121.

It is an arithmetic number, because the mean of its divisors is an integer number (7216566171309).

Almost surely, 2^{131404424340425} is an apocalyptic number.

It is an amenable number.

131404424340425 is a deficient number, since it is larger than the sum of its proper divisors (41793163770991).

131404424340425 is a wasteful number, since it uses less digits than its factorization.

131404424340425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203062077 (or 1203062072 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 41.

Adding to 131404424340425 its reverse (524043424404131), we get a palindrome (655447848744556).

The spelling of 131404424340425 in words is "one hundred thirty-one trillion, four hundred four billion, four hundred twenty-four million, three hundred forty thousand, four hundred twenty-five".