123223312313 has 4 divisors (see below), whose sum is σ = 123236538768. Its totient is φ = 123210085860.

The previous prime is 123223312301. The next prime is 123223312319. The reversal of 123223312313 is 313213322321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313213322321 = 79 ⋅3964725599.

It is a cyclic number.

It is not a de Polignac number, because 123223312313 - 2²⁸ = 122954876857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123223312319) 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, 6599243 + ... + 6617888.

It is an arithmetic number, because the mean of its divisors is an integer number (30809134692).

Almost surely, 2^123223312313 is an apocalyptic number.

It is an amenable number.

123223312313 is a deficient number, since it is larger than the sum of its proper divisors (13226455).

123223312313 is an equidigital number, since it uses as much as digits as its factorization.

123223312313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13226454.

The product of its digits is 3888, while the sum is 26.

Adding to 123223312313 its reverse (313213322321), we get a palindrome (436436634634).

The spelling of 123223312313 in words is "one hundred twenty-three billion, two hundred twenty-three million, three hundred twelve thousand, three hundred thirteen".