123311299 has 2 divisors, whose sum is σ = 123311300. Its totient is φ = 123311298.

The previous prime is 123311267. The next prime is 123311323. The reversal of 123311299 is 992113321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123311299 - 2⁵ = 123311267 is a prime.

It is a super-2 number, since 2×123311299² = 30411352922134802, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123311299.

It is not a weakly prime, because it can be changed into another prime (123311249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61655649 + 61655650.

It is an arithmetic number, because the mean of its divisors is an integer number (61655650).

Almost surely, 2^123311299 is an apocalyptic number.

123311299 is a deficient number, since it is larger than the sum of its proper divisors (1).

123311299 is an equidigital number, since it uses as much as digits as its factorization.

123311299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 31.

The square root of 123311299 is about 11104.5620805145. The cubic root of 123311299 is about 497.7381824575.

The spelling of 123311299 in words is "one hundred twenty-three million, three hundred eleven thousand, two hundred ninety-nine".