100111408 has 20 divisors (see below), whose sum is σ = 194271048. Its totient is φ = 49976960.

The previous prime is 100111357. The next prime is 100111409. The reversal of 100111408 is 804111001.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 100111391 and 100111400.

It is not an unprimeable number, because it can be changed into a prime (100111409) 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, 6348 + ... + 15508.

Almost surely, 2^100111408 is an apocalyptic number.

It is an amenable number.

100111408 is a deficient number, since it is larger than the sum of its proper divisors (94159640).

100111408 is an equidigital number, since it uses as much as digits as its factorization.

100111408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852 (or 9846 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 100111408 is about 10005.5688493958. The cubic root of 100111408 is about 464.3311894325.

Adding to 100111408 its reverse (804111001), we get a palindrome (904222409).

The spelling of 100111408 in words is "one hundred million, one hundred eleven thousand, four hundred eight".