131781764613303 has 32 divisors (see below), whose sum is σ = 223201323737600. Its totient is φ = 75277284225408.

The previous prime is 131781764613299. The next prime is 131781764613329. The reversal of 131781764613303 is 303316467187131.

131781764613303 is a `hidden beast` number, since 1 + 3 + 1 + 7 + 8 + 17 + 6 + 4 + 613 + 3 + 0 + 3 = 666.

It is not a de Polignac number, because 131781764613303 - 2² = 131781764613299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131781764613303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131781764693303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122524573 + ... + 123595446.

It is an arithmetic number, because the mean of its divisors is an integer number (6975041366800).

Almost surely, 2^{131781764613303} is an apocalyptic number.

131781764613303 is a deficient number, since it is larger than the sum of its proper divisors (91419559124297).

131781764613303 is a wasteful number, since it uses less digits than its factorization.

131781764613303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246122868 (or 246122862 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 131781764613303 in words is "one hundred thirty-one trillion, seven hundred eighty-one billion, seven hundred sixty-four million, six hundred thirteen thousand, three hundred three".