123243341312 has 320 divisors, whose sum is σ = 332948689920. Its totient is φ = 44173983744.

The previous prime is 123243341311. The next prime is 123243341341. The reversal of 123243341312 is 213143342321.

It is a super-2 number, since 2×123243341312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123243341311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20357678 + ... + 20363730.

It is an arithmetic number, because the mean of its divisors is an integer number (1040464656).

Almost surely, 2^123243341312 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 123243341312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166474344960).

123243341312 is an abundant number, since it is smaller than the sum of its proper divisors (209705348608).

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

123243341312 is a wasteful number, since it uses less digits than its factorization.

123243341312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133 (or 6117 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

Adding to 123243341312 its reverse (213143342321), we get a palindrome (336386683633).

The spelling of 123243341312 in words is "one hundred twenty-three billion, two hundred forty-three million, three hundred forty-one thousand, three hundred twelve".