9901111075 has 12 divisors (see below), whose sum is σ = 12292806960. Its totient is φ = 7910934560.

The previous prime is 9901111061. The next prime is 9901111079. The reversal of 9901111075 is 5701111099.

It is not a de Polignac number, because 9901111075 - 2⁵ = 9901111043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9901111075.

It is not an unprimeable number, because it can be changed into a prime (9901111079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228535 + ... + 268384.

It is an arithmetic number, because the mean of its divisors is an integer number (1024400580).

Almost surely, 2^9901111075 is an apocalyptic number.

9901111075 is a deficient number, since it is larger than the sum of its proper divisors (2391695885).

9901111075 is a wasteful number, since it uses less digits than its factorization.

9901111075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497726 (or 497721 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 34.

The square root of 9901111075 is about 99504.3269159688. The cubic root of 9901111075 is about 2147.3094937127.

The spelling of 9901111075 in words is "nine billion, nine hundred one million, one hundred eleven thousand, seventy-five".