131011001287 has 2 divisors, whose sum is σ = 131011001288. Its totient is φ = 131011001286.

The previous prime is 131011001273. The next prime is 131011001291. The reversal of 131011001287 is 782100110131.

It is a strong prime.

It is an emirp because it is prime and its reverse (782100110131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131011001287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131011001087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65505500643 + 65505500644.

It is an arithmetic number, because the mean of its divisors is an integer number (65505500644).

Almost surely, 2^131011001287 is an apocalyptic number.

131011001287 is a deficient number, since it is larger than the sum of its proper divisors (1).

131011001287 is an equidigital number, since it uses as much as digits as its factorization.

131011001287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 25.

The spelling of 131011001287 in words is "one hundred thirty-one billion, eleven million, one thousand, two hundred eighty-seven".