12423611 has 4 divisors (see below), whose sum is σ = 12963792. Its totient is φ = 11883432.

The previous prime is 12423581. The next prime is 12423613. The reversal of 12423611 is 11632421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11632421 = 3361 ⋅3461.

It is a cyclic number.

It is not a de Polignac number, because 12423611 - 2¹⁸ = 12161467 is a prime.

It is a super-2 number, since 2×12423611² = 308692220558642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12423613) 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, 270056 + ... + 270101.

It is an arithmetic number, because the mean of its divisors is an integer number (3240948).

Almost surely, 2^12423611 is an apocalyptic number.

12423611 is a deficient number, since it is larger than the sum of its proper divisors (540181).

12423611 is an equidigital number, since it uses as much as digits as its factorization.

12423611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540180.

The product of its digits is 288, while the sum is 20.

The square root of 12423611 is about 3524.7143146644. The cubic root of 12423611 is about 231.6057202708.

The spelling of 12423611 in words is "twelve million, four hundred twenty-three thousand, six hundred eleven".