12304121 has 4 divisors (see below), whose sum is σ = 12312912. Its totient is φ = 12295332.

The previous prime is 12304111. The next prime is 12304129. The reversal of 12304121 is 12140321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12140321 = 1949 ⋅6229.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12304121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12304096 and 12304105.

It is not an unprimeable number, because it can be changed into a prime (12304129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1775 + ... + 5268.

It is an arithmetic number, because the mean of its divisors is an integer number (3078228).

Almost surely, 2^12304121 is an apocalyptic number.

It is an amenable number.

12304121 is a deficient number, since it is larger than the sum of its proper divisors (8791).

12304121 is an equidigital number, since it uses as much as digits as its factorization.

12304121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8790.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12304121 is about 3507.7230506413. The cubic root of 12304121 is about 230.8608008023.

Adding to 12304121 its reverse (12140321), we get a palindrome (24444442).

The spelling of 12304121 in words is "twelve million, three hundred four thousand, one hundred twenty-one".