131201421020287 has 2 divisors, whose sum is σ = 131201421020288. Its totient is φ = 131201421020286.

The previous prime is 131201421020279. The next prime is 131201421020321. The reversal of 131201421020287 is 782020124102131.

It is an a-pointer prime, because the next prime (131201421020321) can be obtained adding 131201421020287 to its sum of digits (34).

It is a weak prime.

It is an emirp because it is prime and its reverse (782020124102131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131201421020287 - 2³ = 131201421020279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131201421020587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65600710510143 + 65600710510144.

It is an arithmetic number, because the mean of its divisors is an integer number (65600710510144).

Almost surely, 2^{131201421020287} is an apocalyptic number.

131201421020287 is a deficient number, since it is larger than the sum of its proper divisors (1).

131201421020287 is an equidigital number, since it uses as much as digits as its factorization.

131201421020287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 131201421020287 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty-one million, twenty thousand, two hundred eighty-seven".