10002131287 has 2 divisors, whose sum is σ = 10002131288. Its totient is φ = 10002131286.

The previous prime is 10002131273. The next prime is 10002131311. The reversal of 10002131287 is 78213120001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10002131287 - 2¹¹ = 10002129239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10002131207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001065643 + 5001065644.

It is an arithmetic number, because the mean of its divisors is an integer number (5001065644).

Almost surely, 2^10002131287 is an apocalyptic number.

10002131287 is a deficient number, since it is larger than the sum of its proper divisors (1).

10002131287 is an equidigital number, since it uses as much as digits as its factorization.

10002131287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 10002131287 its reverse (78213120001), we get a palindrome (88215251288).

The spelling of 10002131287 in words is "ten billion, two million, one hundred thirty-one thousand, two hundred eighty-seven".