123223103312 has 80 divisors (see below), whose sum is σ = 249266903040. Its totient is φ = 58936905216.

The previous prime is 123223103309. The next prime is 123223103323. The reversal of 123223103312 is 213301322321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80907383 + ... + 80908905.

It is an arithmetic number, because the mean of its divisors is an integer number (3115836288).

Almost surely, 2^123223103312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123223103312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124633451520).

123223103312 is an abundant number, since it is smaller than the sum of its proper divisors (126043799728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123223103312 is a wasteful number, since it uses less digits than its factorization.

123223103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060 (or 3054 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123223103312 its reverse (213301322321), we get a palindrome (336524425633).

The spelling of 123223103312 in words is "one hundred twenty-three billion, two hundred twenty-three million, one hundred three thousand, three hundred twelve".