123321723 has 32 divisors (see below), whose sum is σ = 209456640. Its totient is φ = 62830080.

The previous prime is 123321713. The next prime is 123321739. The reversal of 123321723 is 327123321.

It is not a de Polignac number, because 123321723 - 2¹⁰ = 123320699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123321693 and 123321702.

It is not an unprimeable number, because it can be changed into a prime (123321713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2308 + ... + 15873.

It is an arithmetic number, because the mean of its divisors is an integer number (6545520).

Almost surely, 2^123321723 is an apocalyptic number.

123321723 is a deficient number, since it is larger than the sum of its proper divisors (86134917).

123321723 is a wasteful number, since it uses less digits than its factorization.

123321723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18227.

The product of its digits is 1512, while the sum is 24.

The square root of 123321723 is about 11105.0314272405. The cubic root of 123321723 is about 497.7522073324.

The spelling of 123321723 in words is "one hundred twenty-three million, three hundred twenty-one thousand, seven hundred twenty-three".