131234206487 has 2 divisors, whose sum is σ = 131234206488. Its totient is φ = 131234206486.

The previous prime is 131234206483. The next prime is 131234206507. The reversal of 131234206487 is 784602432131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131234206487 - 2² = 131234206483 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131234206483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65617103243 + 65617103244.

It is an arithmetic number, because the mean of its divisors is an integer number (65617103244).

Almost surely, 2^131234206487 is an apocalyptic number.

131234206487 is a deficient number, since it is larger than the sum of its proper divisors (1).

131234206487 is an equidigital number, since it uses as much as digits as its factorization.

131234206487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 131234206487 in words is "one hundred thirty-one billion, two hundred thirty-four million, two hundred six thousand, four hundred eighty-seven".