123320240011 has 4 divisors (see below), whose sum is σ = 123321193632. Its totient is φ = 123319286392.

The previous prime is 123320239979. The next prime is 123320240093. The reversal of 123320240011 is 110042023321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 110042023321 = 73 ⋅1507424977.

It is a cyclic number.

It is not a de Polignac number, because 123320240011 - 2⁵ = 123320239979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123320246011) 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, 245395 + ... + 553948.

It is an arithmetic number, because the mean of its divisors is an integer number (30830298408).

Almost surely, 2^123320240011 is an apocalyptic number.

123320240011 is a deficient number, since it is larger than the sum of its proper divisors (953621).

123320240011 is an equidigital number, since it uses as much as digits as its factorization.

123320240011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953620.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123320240011 its reverse (110042023321), we get a palindrome (233362263332).

The spelling of 123320240011 in words is "one hundred twenty-three billion, three hundred twenty million, two hundred forty thousand, eleven".