12423005 has 16 divisors (see below), whose sum is σ = 18040320. Its totient is φ = 8017152.

The previous prime is 12422999. The next prime is 12423011. The reversal of 12423005 is 50032421.

12423005 = T₄₃₃ + T₄₃₄ + ... + T₅₃₇.

It is an interprime number because it is at equal distance from previous prime (12422999) and next prime (12423011).

It is a cyclic number.

It is not a de Polignac number, because 12423005 - 2⁴ = 12422989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9845 + ... + 11034.

It is an arithmetic number, because the mean of its divisors is an integer number (1127520).

Almost surely, 2^12423005 is an apocalyptic number.

It is an amenable number.

12423005 is a deficient number, since it is larger than the sum of its proper divisors (5617315).

12423005 is a wasteful number, since it uses less digits than its factorization.

12423005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20908.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 12423005 is about 3524.6283492022. The cubic root of 12423005 is about 231.6019544481.

Adding to 12423005 its reverse (50032421), we get a palindrome (62455426).

The spelling of 12423005 in words is "twelve million, four hundred twenty-three thousand, five".