12123070 has 16 divisors (see below), whose sum is σ = 22770720. Its totient is φ = 4638304.

The previous prime is 12123053. The next prime is 12123101. The reversal of 12123070 is 7032121.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26125 + ... + 26584.

It is an arithmetic number, because the mean of its divisors is an integer number (1423170).

Almost surely, 2^12123070 is an apocalyptic number.

12123070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123070 is a deficient number, since it is larger than the sum of its proper divisors (10647650).

12123070 is a wasteful number, since it uses less digits than its factorization.

12123070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52739.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 12123070 is about 3481.8199264178. The cubic root of 12123070 is about 229.7228545852.

Adding to 12123070 its reverse (7032121), we get a palindrome (19155191).

The spelling of 12123070 in words is "twelve million, one hundred twenty-three thousand, seventy".