12123372 has 36 divisors (see below), whose sum is σ = 29042888. Its totient is φ = 3936000.

The previous prime is 12123367. The next prime is 12123373. The reversal of 12123372 is 27332121.

It is a super-2 number, since 2×12123372² = 293952297300768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12123373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19872 + ... + 20472.

Almost surely, 2^12123372 is an apocalyptic number.

12123372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12123372 is an abundant number, since it is smaller than the sum of its proper divisors (16919516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123372 is a wasteful number, since it uses less digits than its factorization.

12123372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 647 counting only the distinct ones).

The product of its digits is 504, while the sum is 21.

The square root of 12123372 is about 3481.8632942722. The cubic root of 12123372 is about 229.7247621253.

Adding to 12123372 its reverse (27332121), we get a palindrome (39455493).

The spelling of 12123372 in words is "twelve million, one hundred twenty-three thousand, three hundred seventy-two".