103312404 has 54 divisors (see below), whose sum is σ = 282801246. Its totient is φ = 31786560.

The previous prime is 103312403. The next prime is 103312441. The reversal of 103312404 is 404213301.

It can be written as a sum of positive squares in 3 ways, for example, as 10575504 + 92736900 = 3252^2 + 9630^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103312403) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2407 + ... + 14574.

Almost surely, 2^103312404 is an apocalyptic number.

It is an amenable number.

103312404 is an abundant number, since it is smaller than the sum of its proper divisors (179488842).

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

103312404 is a wasteful number, since it uses less digits than its factorization.

103312404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17017 (or 16999 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 103312404 is about 10164.2709527049. The cubic root of 103312404 is about 469.2282551344.

Adding to 103312404 its reverse (404213301), we get a palindrome (507525705).

The spelling of 103312404 in words is "one hundred three million, three hundred twelve thousand, four hundred four".