109281311 has 4 divisors (see below), whose sum is σ = 109447800. Its totient is φ = 109114824.

The previous prime is 109281281. The next prime is 109281371. The reversal of 109281311 is 113182901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113182901 = 13 ⋅8706377.

It is a cyclic number.

It is not a de Polignac number, because 109281311 - 2¹⁰ = 109280287 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 (109281371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82256 + ... + 83573.

It is an arithmetic number, because the mean of its divisors is an integer number (27361950).

Almost surely, 2^109281311 is an apocalyptic number.

109281311 is a deficient number, since it is larger than the sum of its proper divisors (166489).

109281311 is an equidigital number, since it uses as much as digits as its factorization.

109281311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166488.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 109281311 is about 10453.7701811356. The cubic root of 109281311 is about 478.0962076500.

The spelling of 109281311 in words is "one hundred nine million, two hundred eighty-one thousand, three hundred eleven".