131402320523541 has 20 divisors (see below), whose sum is σ = 196911574175052. Its totient is φ = 87325201424448.

The previous prime is 131402320523449. The next prime is 131402320523587. The reversal of 131402320523541 is 145325023204131.

131402320523541 is a `hidden beast` number, since 1 + 3 + 1 + 40 + 2 + 3 + 20 + 52 + 3 + 541 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24922520124516 + 106479800399025 = 4992246^2 + 10318905^2 .

It is not a de Polignac number, because 131402320523541 - 2¹⁸ = 131402320261397 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131402320523496 and 131402320523505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131402310523541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2558729640 + ... + 2558780993.

Almost surely, 2^{131402320523541} is an apocalyptic number.

It is an amenable number.

131402320523541 is a deficient number, since it is larger than the sum of its proper divisors (65509253651511).

131402320523541 is an equidigital number, since it uses as much as digits as its factorization.

131402320523541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117510962 (or 5117510953 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 131402320523541 its reverse (145325023204131), we get a palindrome (276727343727672).

The spelling of 131402320523541 in words is "one hundred thirty-one trillion, four hundred two billion, three hundred twenty million, five hundred twenty-three thousand, five hundred forty-one".