12321441 has 12 divisors (see below), whose sum is σ = 19415760. Its totient is φ = 7467480.

The previous prime is 12321437. The next prime is 12321461. The reversal of 12321441 is 14412321.

It is not a de Polignac number, because 12321441 - 2² = 12321437 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12321401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62131 + ... + 62328.

It is an arithmetic number, because the mean of its divisors is an integer number (1617980).

Almost surely, 2^12321441 is an apocalyptic number.

12321441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12321441 is a deficient number, since it is larger than the sum of its proper divisors (7094319).

12321441 is a wasteful number, since it uses less digits than its factorization.

12321441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124476 (or 124473 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 12321441 is about 3510.1910204432. The cubic root of 12321441 is about 230.9690744005.

Adding to 12321441 its reverse (14412321), we get a palindrome (26733762).

It can be divided in two parts, 12321 and 441, that multiplied together give a square (5433561 = 2331²).

The spelling of 12321441 in words is "twelve million, three hundred twenty-one thousand, four hundred forty-one".