100108911 has 24 divisors (see below), whose sum is σ = 155648304. Its totient is φ = 57066240.

The previous prime is 100108909. The next prime is 100108913. The reversal of 100108911 is 119801001.

It is an interprime number because it is at equal distance from previous prime (100108909) and next prime (100108913).

It is not a de Polignac number, because 100108911 - 2¹ = 100108909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100108913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113191 + ... + 114071.

It is an arithmetic number, because the mean of its divisors is an integer number (6485346).

Almost surely, 2^100108911 is an apocalyptic number.

100108911 is a deficient number, since it is larger than the sum of its proper divisors (55539393).

100108911 is an equidigital number, since it uses as much as digits as its factorization.

100108911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1664 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 21.

The square root of 100108911 is about 10005.4440681061. Note that the first 3 decimals coincide. The cubic root of 100108911 is about 464.3273289180.

Adding to 100108911 its reverse (119801001), we get a palindrome (219909912).

The spelling of 100108911 in words is "one hundred million, one hundred eight thousand, nine hundred eleven".