9999900011 has 4 divisors (see below), whose sum is σ = 10098909024. Its totient is φ = 9900891000.

The previous prime is 9999899993. The next prime is 9999900017. The reversal of 9999900011 is 1100099999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9999900011 - 2⁶ = 9999899947 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9999900017) 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, 49504355 + ... + 49504556.

It is an arithmetic number, because the mean of its divisors is an integer number (2524727256).

Almost surely, 2^9999900011 is an apocalyptic number.

9999900011 is a deficient number, since it is larger than the sum of its proper divisors (99009013).

9999900011 is a wasteful number, since it uses less digits than its factorization.

9999900011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99009012.

The product of its (nonzero) digits is 59049, while the sum is 47.

The square root of 9999900011 is about 99999.5000537503. The cubic root of 9999900011 is about 2154.4275093489.

It can be divided in two parts, 999 and 9900011, that multiplied together give a palindrome (9890110989).

The spelling of 9999900011 in words is "nine billion, nine hundred ninety-nine million, nine hundred thousand, eleven".