100001312636 has 12 divisors (see below), whose sum is σ = 177110759112. Its totient is φ = 49398238608.

The previous prime is 100001312633. The next prime is 100001312681. The reversal of 100001312636 is 636213100001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001312633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150604055 + ... + 150604718.

It is an arithmetic number, because the mean of its divisors is an integer number (14759229926).

Almost surely, 2^100001312636 is an apocalyptic number.

It is an amenable number.

100001312636 is a deficient number, since it is larger than the sum of its proper divisors (77109446476).

100001312636 is a wasteful number, since it uses less digits than its factorization.

100001312636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301208860 (or 301208858 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 100001312636 its reverse (636213100001), we get a palindrome (736214412637).

The spelling of 100001312636 in words is "one hundred billion, one million, three hundred twelve thousand, six hundred thirty-six".