131193354287 has 2 divisors, whose sum is σ = 131193354288. Its totient is φ = 131193354286.

The previous prime is 131193354221. The next prime is 131193354323. The reversal of 131193354287 is 782453391131.

It is a strong prime.

It is an emirp because it is prime and its reverse (782453391131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131193354287 - 2⁸ = 131193354031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131193354587) 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 as a sum of consecutive naturals, namely, 65596677143 + 65596677144.

It is an arithmetic number, because the mean of its divisors is an integer number (65596677144).

Almost surely, 2^131193354287 is an apocalyptic number.

131193354287 is a deficient number, since it is larger than the sum of its proper divisors (1).

131193354287 is an equidigital number, since it uses as much as digits as its factorization.

131193354287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The spelling of 131193354287 in words is "one hundred thirty-one billion, one hundred ninety-three million, three hundred fifty-four thousand, two hundred eighty-seven".