131331004340535 has 96 divisors (see below), whose sum is σ = 235272854389248. Its totient is φ = 67700359802880.

The previous prime is 131331004340479. The next prime is 131331004340593. The reversal of 131331004340535 is 535043400133131.

It is a happy number.

131331004340535 is a `hidden beast` number, since 1 + 3 + 1 + 33 + 10 + 0 + 43 + 40 + 535 = 666.

It is not a de Polignac number, because 131331004340535 - 2¹¹ = 131331004338487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131331004340535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5529016219 + ... + 5529039971.

It is an arithmetic number, because the mean of its divisors is an integer number (2450758899888).

Almost surely, 2^{131331004340535} is an apocalyptic number.

131331004340535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131331004340535 is a deficient number, since it is larger than the sum of its proper divisors (103941850048713).

131331004340535 is a wasteful number, since it uses less digits than its factorization.

131331004340535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28505 (or 28502 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

Adding to 131331004340535 its reverse (535043400133131), we get a palindrome (666374404473666).

The spelling of 131331004340535 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, four million, three hundred forty thousand, five hundred thirty-five".