100635401287 has 2 divisors, whose sum is σ = 100635401288. Its totient is φ = 100635401286.

The previous prime is 100635401257. The next prime is 100635401357. The reversal of 100635401287 is 782104536001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100635401287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100635401227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50317700643 + 50317700644.

It is an arithmetic number, because the mean of its divisors is an integer number (50317700644).

Almost surely, 2^100635401287 is an apocalyptic number.

100635401287 is a deficient number, since it is larger than the sum of its proper divisors (1).

100635401287 is an equidigital number, since it uses as much as digits as its factorization.

100635401287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 100635401287 its reverse (782104536001), we get a palindrome (882739937288).

The spelling of 100635401287 in words is "one hundred billion, six hundred thirty-five million, four hundred one thousand, two hundred eighty-seven".