123311099 has 2 divisors, whose sum is σ = 123311100. Its totient is φ = 123311098.

The previous prime is 123311053. The next prime is 123311107. The reversal of 123311099 is 990113321.

It is a strong prime.

It is an emirp because it is prime and its reverse (990113321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123311099 - 2¹² = 123307003 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123311299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61655549 + 61655550.

It is an arithmetic number, because the mean of its divisors is an integer number (61655550).

Almost surely, 2^123311099 is an apocalyptic number.

123311099 is a deficient number, since it is larger than the sum of its proper divisors (1).

123311099 is an equidigital number, since it uses as much as digits as its factorization.

123311099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 123311099 is about 11104.5530752030. The cubic root of 123311099 is about 497.7379133617.

The spelling of 123311099 in words is "one hundred twenty-three million, three hundred eleven thousand, ninety-nine".