123312299 has 16 divisors (see below), whose sum is σ = 142490880. Its totient is φ = 105536160.

The previous prime is 123312253. The next prime is 123312307. The reversal of 123312299 is 992213321.

It is a cyclic number.

It is not a de Polignac number, because 123312299 - 2¹⁶ = 123246763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123312199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33137 + ... + 36669.

It is an arithmetic number, because the mean of its divisors is an integer number (8905680).

Almost surely, 2^123312299 is an apocalyptic number.

123312299 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

123312299 is a deficient number, since it is larger than the sum of its proper divisors (19178581).

123312299 is a wasteful number, since it uses less digits than its factorization.

123312299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730.

The product of its digits is 5832, while the sum is 32.

The square root of 123312299 is about 11104.6071069624. The cubic root of 123312299 is about 497.7395279326.

The spelling of 123312299 in words is "one hundred twenty-three million, three hundred twelve thousand, two hundred ninety-nine".