131366503543 has 12 divisors (see below), whose sum is σ = 144578166040. Its totient is φ = 119272261680.

The previous prime is 131366503537. The next prime is 131366503559. The reversal of 131366503543 is 345305663131.

It is a happy number.

It is not a de Polignac number, because 131366503543 - 2³³ = 122776568951 is a prime.

It is a super-2 number, since 2×131366503543² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131366503496 and 131366503505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131366503043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 594528 + ... + 784981.

Almost surely, 2^131366503543 is an apocalyptic number.

131366503543 is a deficient number, since it is larger than the sum of its proper divisors (13211662497).

131366503543 is a wasteful number, since it uses less digits than its factorization.

131366503543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380318 (or 1380307 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 40.

The spelling of 131366503543 in words is "one hundred thirty-one billion, three hundred sixty-six million, five hundred three thousand, five hundred forty-three".