990110011 has 4 divisors (see below), whose sum is σ = 1080120024. Its totient is φ = 900100000.

The previous prime is 990109999. The next prime is 990110053. The reversal of 990110011 is 110011099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110011099 = 11 ⋅10001009.

It is a cyclic number.

It is not a de Polignac number, because 990110011 - 2⁵ = 990109979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990110711) 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, 45004990 + ... + 45005011.

It is an arithmetic number, because the mean of its divisors is an integer number (270030006).

Almost surely, 2^990110011 is an apocalyptic number.

990110011 is a deficient number, since it is larger than the sum of its proper divisors (90010013).

990110011 is a wasteful number, since it uses less digits than its factorization.

990110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90010012.

The product of its (nonzero) digits is 81, while the sum is 22.

The square root of 990110011 is about 31466.0135860900. The cubic root of 990110011 is about 996.6924089030.

The spelling of 990110011 in words is "nine hundred ninety million, one hundred ten thousand, eleven".