103404312 has 96 divisors (see below), whose sum is σ = 308065680. Its totient is φ = 31073280.

The previous prime is 103404299. The next prime is 103404331. The reversal of 103404312 is 213404301.

103404312 is a `hidden beast` number, since 10 + 340 + 4 + 312 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108028 + ... + 108980.

Almost surely, 2^103404312 is an apocalyptic number.

103404312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103404312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154032840).

103404312 is an abundant number, since it is smaller than the sum of its proper divisors (204661368).

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

103404312 is a wasteful number, since it uses less digits than its factorization.

103404312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1106 counting only the distinct ones).

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

The square root of 103404312 is about 10168.7910785894. The cubic root of 103404312 is about 469.3673576580.

Adding to 103404312 its reverse (213404301), we get a palindrome (316808613).

The spelling of 103404312 in words is "one hundred three million, four hundred four thousand, three hundred twelve".