12031304 has 8 divisors (see below), whose sum is σ = 22558710. Its totient is φ = 6015648.

The previous prime is 12031301. The next prime is 12031307. The reversal of 12031304 is 40313021.

12031304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12031301) and next prime (12031307).

It can be written as a sum of positive squares in only one way, i.e., 7828804 + 4202500 = 2798^2 + 2050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12031301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 751949 + ... + 751964.

Almost surely, 2^12031304 is an apocalyptic number.

It is an amenable number.

12031304 is a deficient number, since it is larger than the sum of its proper divisors (10527406).

12031304 is a wasteful number, since it uses less digits than its factorization.

12031304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503919 (or 1503915 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12031304 is about 3468.6170154688. The cubic root of 12031304 is about 229.1417541771.

Adding to 12031304 its reverse (40313021), we get a palindrome (52344325).

The spelling of 12031304 in words is "twelve million, thirty-one thousand, three hundred four".