100811004 has 48 divisors (see below), whose sum is σ = 269595648. Its totient is φ = 28721088.

The previous prime is 100810993. The next prime is 100811021. The reversal of 100811004 is 400118001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31837 + ... + 34859.

It is an arithmetic number, because the mean of its divisors is an integer number (5616576).

Almost surely, 2^100811004 is an apocalyptic number.

100811004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

100811004 is an abundant number, since it is smaller than the sum of its proper divisors (168784644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100811004 is a wasteful number, since it uses less digits than its factorization.

100811004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434 (or 3432 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 100811004 is about 10040.4683157709. The cubic root of 100811004 is about 465.4102888210.

Adding to 100811004 its reverse (400118001), we get a palindrome (500929005).

The spelling of 100811004 in words is "one hundred million, eight hundred eleven thousand, four".