109523911 has 16 divisors (see below), whose sum is σ = 133595136. Its totient is φ = 87647616.

The previous prime is 109523903. The next prime is 109523929. The reversal of 109523911 is 119325901.

It is a happy number.

It is not a de Polignac number, because 109523911 - 2³ = 109523903 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 (109523951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11490 + ... + 18736.

It is an arithmetic number, because the mean of its divisors is an integer number (8349696).

Almost surely, 2^109523911 is an apocalyptic number.

109523911 is a deficient number, since it is larger than the sum of its proper divisors (24071225).

109523911 is a wasteful number, since it uses less digits than its factorization.

109523911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7398.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 109523911 is about 10465.3672176374. The cubic root of 109523911 is about 478.4497307928.

The spelling of 109523911 in words is "one hundred nine million, five hundred twenty-three thousand, nine hundred eleven".