131403325401533 has 4 divisors (see below), whose sum is σ = 135934474553340. Its totient is φ = 126872176249728.

The previous prime is 131403325401493. The next prime is 131403325401559. The reversal of 131403325401533 is 335104523304131.

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 42572662701529 + 88830662700004 = 6524773^2 + 9425002^2 .

It is a cyclic number.

It is not a de Polignac number, because 131403325401533 - 2⁸ = 131403325401277 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 (131403325401563) 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, 2265574575860 + ... + 2265574575917.

It is an arithmetic number, because the mean of its divisors is an integer number (33983618638335).

Almost surely, 2^{131403325401533} is an apocalyptic number.

It is an amenable number.

131403325401533 is a deficient number, since it is larger than the sum of its proper divisors (4531149151807).

131403325401533 is an equidigital number, since it uses as much as digits as its factorization.

131403325401533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531149151806.

The product of its (nonzero) digits is 194400, while the sum is 38.

Adding to 131403325401533 its reverse (335104523304131), we get a palindrome (466507848705664).

The spelling of 131403325401533 in words is "one hundred thirty-one trillion, four hundred three billion, three hundred twenty-five million, four hundred one thousand, five hundred thirty-three".