12491323 has 8 divisors (see below), whose sum is σ = 14037408. Its totient is φ = 11028864.

The previous prime is 12491321. The next prime is 12491329. The reversal of 12491323 is 32319421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12491323 - 2¹ = 12491321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12491321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20590 + ... + 21187.

It is an arithmetic number, because the mean of its divisors is an integer number (1754676).

Almost surely, 2^12491323 is an apocalyptic number.

12491323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12491323 is a deficient number, since it is larger than the sum of its proper divisors (1546085).

12491323 is a wasteful number, since it uses less digits than its factorization.

12491323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41813.

The product of its digits is 1296, while the sum is 25.

The square root of 12491323 is about 3534.3065797975. The cubic root of 12491323 is about 232.0257291619.

The spelling of 12491323 in words is "twelve million, four hundred ninety-one thousand, three hundred twenty-three".