109911001 has 8 divisors (see below), whose sum is σ = 116566344. Its totient is φ = 103276800.

The previous prime is 109910989. The next prime is 109911013. The reversal of 109911001 is 100119901.

It is an interprime number because it is at equal distance from previous prime (109910989) and next prime (109911013).

It can be written as a sum of positive squares in 4 ways, for example, as 44689225 + 65221776 = 6685^2 + 8076^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109911001 - 2¹⁹ = 109386713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109911031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6151 + ... + 16051.

It is an arithmetic number, because the mean of its divisors is an integer number (14570793).

Almost surely, 2^109911001 is an apocalyptic number.

It is an amenable number.

109911001 is a deficient number, since it is larger than the sum of its proper divisors (6655343).

109911001 is an equidigital number, since it uses as much as digits as its factorization.

109911001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10571.

The product of its (nonzero) digits is 81, while the sum is 22.

The square root of 109911001 is about 10483.8447622998. The cubic root of 109911001 is about 479.0127291506.

It can be divided in two parts, 1099 and 11001, that added together give a square (12100 = 110²).

The spelling of 109911001 in words is "one hundred nine million, nine hundred eleven thousand, one".