123323220011 has 4 divisors (see below), whose sum is σ = 123331236672. Its totient is φ = 123315203352.

The previous prime is 123323219947. The next prime is 123323220047. The reversal of 123323220011 is 110022323321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123323220011 - 2⁶ = 123323219947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123323220061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3985211 + ... + 4016036.

It is an arithmetic number, because the mean of its divisors is an integer number (30832809168).

Almost surely, 2^123323220011 is an apocalyptic number.

123323220011 is a deficient number, since it is larger than the sum of its proper divisors (8016661).

123323220011 is an equidigital number, since it uses as much as digits as its factorization.

123323220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8016660.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123323220011 its reverse (110022323321), we get a palindrome (233345543332).

The spelling of 123323220011 in words is "one hundred twenty-three billion, three hundred twenty-three million, two hundred twenty thousand, eleven".