12123199 has 8 divisors (see below), whose sum is σ = 13300560. Its totient is φ = 10958400.

The previous prime is 12123187. The next prime is 12123211. The reversal of 12123199 is 99132121.

It is an interprime number because it is at equal distance from previous prime (12123187) and next prime (12123211).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12123199 - 2¹⁵ = 12090431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054 + ... + 5035.

It is an arithmetic number, because the mean of its divisors is an integer number (1662570).

Almost surely, 2^12123199 is an apocalyptic number.

12123199 is a deficient number, since it is larger than the sum of its proper divisors (1177361).

12123199 is a wasteful number, since it uses less digits than its factorization.

12123199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6281.

The product of its digits is 972, while the sum is 28.

The square root of 12123199 is about 3481.8384511634. The cubic root of 12123199 is about 229.7236693993.

The spelling of 12123199 in words is "twelve million, one hundred twenty-three thousand, one hundred ninety-nine".