990110201011 has 4 divisors (see below), whose sum is σ = 992126719224. Its totient is φ = 988093682800.

The previous prime is 990110200999. The next prime is 990110201021. The reversal of 990110201011 is 110102011099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110102011099 = 13679 ⋅8048981.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-990110201011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990110201021) 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, 1008258370 + ... + 1008259351.

It is an arithmetic number, because the mean of its divisors is an integer number (248031679806).

Almost surely, 2^990110201011 is an apocalyptic number.

990110201011 is a deficient number, since it is larger than the sum of its proper divisors (2016518213).

990110201011 is a wasteful number, since it uses less digits than its factorization.

990110201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016518212.

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 990110201011 in words is "nine hundred ninety billion, one hundred ten million, two hundred one thousand, eleven".