123200723 has 2 divisors, whose sum is σ = 123200724. Its totient is φ = 123200722.

The previous prime is 123200711. The next prime is 123200741. The reversal of 123200723 is 327002321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123200723 - 2⁶ = 123200659 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 123200695 and 123200704.

It is not a weakly prime, because it can be changed into another prime (123200783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61600361 + 61600362.

It is an arithmetic number, because the mean of its divisors is an integer number (61600362).

Almost surely, 2^123200723 is an apocalyptic number.

123200723 is a deficient number, since it is larger than the sum of its proper divisors (1).

123200723 is an equidigital number, since it uses as much as digits as its factorization.

123200723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 123200723 is about 11099.5821092508. The cubic root of 123200723 is about 497.5893603108.

The spelling of 123200723 in words is "one hundred twenty-three million, two hundred thousand, seven hundred twenty-three".