12312199 has 8 divisors (see below), whose sum is σ = 13603680. Its totient is φ = 11083776.

The previous prime is 12312197. The next prime is 12312217. The reversal of 12312199 is 99121321.

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 12312199 - 2¹ = 12312197 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312191) 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, 15354 + ... + 16135.

It is an arithmetic number, because the mean of its divisors is an integer number (1700460).

Almost surely, 2^12312199 is an apocalyptic number.

12312199 is a deficient number, since it is larger than the sum of its proper divisors (1291481).

12312199 is a wasteful number, since it uses less digits than its factorization.

12312199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31529.

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

The square root of 12312199 is about 3508.8743209183. The cubic root of 12312199 is about 230.9113119435.

The spelling of 12312199 in words is "twelve million, three hundred twelve thousand, one hundred ninety-nine".