110909181911 has 4 divisors (see below), whose sum is σ = 120991834824. Its totient is φ = 100826529000.

The previous prime is 110909181907. The next prime is 110909181913. The reversal of 110909181911 is 119181909011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 110909181911 - 2² = 110909181907 is a prime.

It is a super-2 number, since 2×110909181911² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110909181913) 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, 5041326440 + ... + 5041326461.

It is an arithmetic number, because the mean of its divisors is an integer number (30247958706).

Almost surely, 2^110909181911 is an apocalyptic number.

110909181911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

110909181911 is a deficient number, since it is larger than the sum of its proper divisors (10082652913).

110909181911 is a wasteful number, since it uses less digits than its factorization.

110909181911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10082652912.

The product of its (nonzero) digits is 5832, while the sum is 41.

The spelling of 110909181911 in words is "one hundred ten billion, nine hundred nine million, one hundred eighty-one thousand, nine hundred eleven".