10100009999 has 8 divisors (see below), whose sum is σ = 10220502000. Its totient is φ = 9979920000.

The previous prime is 10100009993. The next prime is 10100010013. The reversal of 10100009999 is 99990000101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10100009999 - 2²⁰ = 10098961423 is a prime.

It is a Duffinian number.

10100009999 is a modest number, since divided by 9999 gives 101 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100009993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49802 + ... + 150599.

It is an arithmetic number, because the mean of its divisors is an integer number (1277562750).

Almost surely, 2^10100009999 is an apocalyptic number.

10100009999 is a deficient number, since it is larger than the sum of its proper divisors (120492001).

10100009999 is a wasteful number, since it uses less digits than its factorization.

10100009999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201001.

The product of its (nonzero) digits is 6561, while the sum is 38.

The spelling of 10100009999 in words is "ten billion, one hundred million, nine thousand, nine hundred ninety-nine".