100331004 has 48 divisors (see below), whose sum is σ = 243210240. Its totient is φ = 32157120.

The previous prime is 100331003. The next prime is 100331017. The reversal of 100331004 is 400133001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100331003) 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, 63577 + ... + 65135.

It is an arithmetic number, because the mean of its divisors is an integer number (5066880).

Almost surely, 2^100331004 is an apocalyptic number.

It is an amenable number.

100331004 is an abundant number, since it is smaller than the sum of its proper divisors (142879236).

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

100331004 is a wasteful number, since it uses less digits than its factorization.

100331004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 100331004 is about 10016.5365271635. The cubic root of 100331004 is about 464.6704474999.

Adding to 100331004 its reverse (400133001), we get a palindrome (500464005).

The spelling of 100331004 in words is "one hundred million, three hundred thirty-one thousand, four".