100813212506 has 8 divisors (see below), whose sum is σ = 153133993920. Its totient is φ = 49768547868.

The previous prime is 100813212497. The next prime is 100813212529. The reversal of 100813212506 is 605212318001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319028996 + ... + 319029311.

It is an arithmetic number, because the mean of its divisors is an integer number (19141749240).

Almost surely, 2^100813212506 is an apocalyptic number.

100813212506 is a deficient number, since it is larger than the sum of its proper divisors (52320781414).

100813212506 is an equidigital number, since it uses as much as digits as its factorization.

100813212506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638058388.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 100813212506 in words is "one hundred billion, eight hundred thirteen million, two hundred twelve thousand, five hundred six".