131404403325503 has 18 divisors (see below), whose sum is σ = 168017672736648. Its totient is φ = 102393041547720.

The previous prime is 131404403325473. The next prime is 131404403325511. The reversal of 131404403325503 is 305523304404131.

It is not a de Polignac number, because 131404403325503 - 2²⁶ = 131404336216639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131404403324503) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11081492075 + ... + 11081503932.

It is an arithmetic number, because the mean of its divisors is an integer number (9334315152036).

Almost surely, 2^{131404403325503} is an apocalyptic number.

131404403325503 is a deficient number, since it is larger than the sum of its proper divisors (36613269411145).

131404403325503 is a wasteful number, since it uses less digits than its factorization.

131404403325503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22162996043 (or 22162996025 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 131404403325503 its reverse (305523304404131), we get a palindrome (436927707729634).

The spelling of 131404403325503 in words is "one hundred thirty-one trillion, four hundred four billion, four hundred three million, three hundred twenty-five thousand, five hundred three".