123323320011 has 16 divisors (see below), whose sum is σ = 168898661408. Its totient is φ = 79982380800.

The previous prime is 123323319961. The next prime is 123323320019. The reversal of 123323320011 is 110023323321.

It is not a de Polignac number, because 123323320011 - 2⁹ = 123323319499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123323320011.

It is not an unprimeable number, because it can be changed into a prime (123323320019) 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 15 ways as a sum of consecutive naturals, for example, 765801 + ... + 912741.

It is an arithmetic number, because the mean of its divisors is an integer number (10556166338).

Almost surely, 2^123323320011 is an apocalyptic number.

123323320011 is a deficient number, since it is larger than the sum of its proper divisors (45575341397).

123323320011 is a wasteful number, since it uses less digits than its factorization.

123323320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154542.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123323320011 its reverse (110023323321), we get a palindrome (233346643332).

The spelling of 123323320011 in words is "one hundred twenty-three billion, three hundred twenty-three million, three hundred twenty thousand, eleven".