991200001110 has 64 divisors (see below), whose sum is σ = 2595246255360. Its totient is φ = 240281239680.

The previous prime is 991200001087. The next prime is 991200001163. The reversal of 991200001110 is 11100002199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11494836 + ... + 11580744.

It is an arithmetic number, because the mean of its divisors is an integer number (40550722740).

Almost surely, 2^991200001110 is an apocalyptic number.

991200001110 is an abundant number, since it is smaller than the sum of its proper divisors (1604046254250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

991200001110 is a wasteful number, since it uses less digits than its factorization.

991200001110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120893.

The product of its (nonzero) digits is 162, while the sum is 24.

The spelling of 991200001110 in words is "nine hundred ninety-one billion, two hundred million, one thousand, one hundred ten".