12378023 has 32 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 9354240.

The previous prime is 12378019. The next prime is 12378043. The reversal of 12378023 is 32087321.

It is not a de Polignac number, because 12378023 - 2² = 12378019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12377983 and 12378001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12378013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209768 + ... + 209826.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 2^12378023 is an apocalyptic number.

12378023 is a deficient number, since it is larger than the sum of its proper divisors (3588697).

12378023 is a wasteful number, since it uses less digits than its factorization.

12378023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 12378023 is about 3518.2414641409. The cubic root of 12378023 is about 231.3220833964.

The spelling of 12378023 in words is "twelve million, three hundred seventy-eight thousand, twenty-three".