123331123230 has 128 divisors (see below), whose sum is σ = 352651124736. Its totient is φ = 27010368000.

The previous prime is 123331123229. The next prime is 123331123241. The reversal of 123331123230 is 32321133321.

It is a self number, because there is not a number n which added to its sum of digits gives 123331123230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 563724 + ... + 751296.

It is an arithmetic number, because the mean of its divisors is an integer number (2755086912).

Almost surely, 2^123331123230 is an apocalyptic number.

123331123230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123331123230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176325562368).

123331123230 is an abundant number, since it is smaller than the sum of its proper divisors (229320001506).

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

123331123230 is a wasteful number, since it uses less digits than its factorization.

123331123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187722.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 123331123230 its reverse (32321133321), we get a palindrome (155652256551).

The spelling of 123331123230 in words is "one hundred twenty-three billion, three hundred thirty-one million, one hundred twenty-three thousand, two hundred thirty".