131404432404501 has 12 divisors (see below), whose sum is σ = 189897262323340. Its totient is φ = 87561019569600.

The previous prime is 131404432404493. The next prime is 131404432404563. The reversal of 131404432404501 is 105404234404131.

It is a happy number.

131404432404501 is a `hidden beast` number, since 1 + 3 + 1 + 40 + 44 + 32 + 40 + 4 + 501 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 59188003503876 + 72216428900625 = 7693374^2 + 8498025^2 .

It is not a de Polignac number, because 131404432404501 - 2³ = 131404432404493 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 (131404432404101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3494594050 + ... + 3494631651.

Almost surely, 2^{131404432404501} is an apocalyptic number.

It is an amenable number.

131404432404501 is a deficient number, since it is larger than the sum of its proper divisors (58492829918839).

131404432404501 is a wasteful number, since it uses less digits than its factorization.

131404432404501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6989227796 (or 6989227793 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 131404432404501 its reverse (105404234404131), we get a palindrome (236808666808632).

The spelling of 131404432404501 in words is "one hundred thirty-one trillion, four hundred four billion, four hundred thirty-two million, four hundred four thousand, five hundred one".