123313199 has 4 divisors (see below), whose sum is σ = 126320880. Its totient is φ = 120305520.

The previous prime is 123313187. The next prime is 123313213. The reversal of 123313199 is 991313321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123313199 is a prime.

It is a super-2 number, since 2×123313199² = 30412290095227202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123313109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503779 + ... + 1503860.

It is an arithmetic number, because the mean of its divisors is an integer number (31580220).

Almost surely, 2^123313199 is an apocalyptic number.

123313199 is a deficient number, since it is larger than the sum of its proper divisors (3007681).

123313199 is an equidigital number, since it uses as much as digits as its factorization.

123313199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007680.

The product of its digits is 4374, while the sum is 32.

The square root of 123313199 is about 11104.6476306094. The cubic root of 123313199 is about 497.7407388540.

The spelling of 123313199 in words is "one hundred twenty-three million, three hundred thirteen thousand, one hundred ninety-nine".