131711010503 has 2 divisors, whose sum is σ = 131711010504. Its totient is φ = 131711010502.

The previous prime is 131711010451. The next prime is 131711010539. The reversal of 131711010503 is 305010117131.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (305010117131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131711010503 - 2²⁰ = 131709961927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131711010583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65855505251 + 65855505252.

It is an arithmetic number, because the mean of its divisors is an integer number (65855505252).

Almost surely, 2^131711010503 is an apocalyptic number.

131711010503 is a deficient number, since it is larger than the sum of its proper divisors (1).

131711010503 is an equidigital number, since it uses as much as digits as its factorization.

131711010503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 23.

Adding to 131711010503 its reverse (305010117131), we get a palindrome (436721127634).

The spelling of 131711010503 in words is "one hundred thirty-one billion, seven hundred eleven million, ten thousand, five hundred three".