12025311 has 4 divisors (see below), whose sum is σ = 16033752. Its totient is φ = 8016872.

The previous prime is 12025283. The next prime is 12025319. The reversal of 12025311 is 11352021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12025311 - 2⁷ = 12025183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12025319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2004216 + ... + 2004221.

It is an arithmetic number, because the mean of its divisors is an integer number (4008438).

Almost surely, 2^12025311 is an apocalyptic number.

12025311 is a deficient number, since it is larger than the sum of its proper divisors (4008441).

12025311 is an equidigital number, since it uses as much as digits as its factorization.

12025311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008440.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12025311 is about 3467.7530188870. The cubic root of 12025311 is about 229.1037013717.

Adding to 12025311 its reverse (11352021), we get a palindrome (23377332).

The spelling of 12025311 in words is "twelve million, twenty-five thousand, three hundred eleven".