123432310320 has 160 divisors (see below), whose sum is σ = 418371865344. Its totient is φ = 29855155200.

The previous prime is 123432310297. The next prime is 123432310349. The reversal of 123432310320 is 23013234321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1116750 + ... + 1222290.

Almost surely, 2^123432310320 is an apocalyptic number.

123432310320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123432310320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209185932672).

123432310320 is an abundant number, since it is smaller than the sum of its proper divisors (294939555024).

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

123432310320 is a wasteful number, since it uses less digits than its factorization.

123432310320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106011 (or 106005 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 123432310320 its reverse (23013234321), we get a palindrome (146445544641).

The spelling of 123432310320 in words is "one hundred twenty-three billion, four hundred thirty-two million, three hundred ten thousand, three hundred twenty".