99901100111 has 4 divisors (see below), whose sum is σ = 100099711152. Its totient is φ = 99702489072.

The previous prime is 99901100099. The next prime is 99901100113. The reversal of 99901100111 is 11100110999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11100110999 = 2663 ⋅4168273.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99901100111 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 (99901100113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99304766 + ... + 99305771.

It is an arithmetic number, because the mean of its divisors is an integer number (25024927788).

Almost surely, 2^99901100111 is an apocalyptic number.

99901100111 is a deficient number, since it is larger than the sum of its proper divisors (198611041).

99901100111 is a wasteful number, since it uses less digits than its factorization.

99901100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198611040.

The product of its (nonzero) digits is 729, while the sum is 32.

The spelling of 99901100111 in words is "ninety-nine billion, nine hundred one million, one hundred thousand, one hundred eleven".