10111009999 has 8 divisors (see below), whose sum is σ = 10802023040. Its totient is φ = 9435882456.

The previous prime is 10111009973. The next prime is 10111010023. The reversal of 10111009999 is 99990011101.

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 10111009999 - 2⁷ = 10111009871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111009939) 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, 3970059 + ... + 3972604.

It is an arithmetic number, because the mean of its divisors is an integer number (1350252880).

Almost surely, 2^10111009999 is an apocalyptic number.

10111009999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

10111009999 is a deficient number, since it is larger than the sum of its proper divisors (691013041).

10111009999 is an equidigital number, since it uses as much as digits as its factorization.

10111009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7942749.

The product of its (nonzero) digits is 6561, while the sum is 40.

The spelling of 10111009999 in words is "ten billion, one hundred eleven million, nine thousand, nine hundred ninety-nine".