123312023013 has 4 divisors (see below), whose sum is σ = 164416030688. Its totient is φ = 82208015340.

The previous prime is 123312023011. The next prime is 123312023027. The reversal of 123312023013 is 310320213321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 123312023013 - 2¹ = 123312023011 is a prime.

It is a super-3 number, since 3×123312023013³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123312023011) 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, 20552003833 + ... + 20552003838.

It is an arithmetic number, because the mean of its divisors is an integer number (41104007672).

Almost surely, 2^123312023013 is an apocalyptic number.

It is an amenable number.

123312023013 is a deficient number, since it is larger than the sum of its proper divisors (41104007675).

123312023013 is an equidigital number, since it uses as much as digits as its factorization.

123312023013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41104007674.

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

Adding to 123312023013 its reverse (310320213321), we get a palindrome (433632236334).

The spelling of 123312023013 in words is "one hundred twenty-three billion, three hundred twelve million, twenty-three thousand, thirteen".