123120313230 has 64 divisors (see below), whose sum is σ = 300641932800. Its totient is φ = 32260045440.

The previous prime is 123120313207. The next prime is 123120313259. The reversal of 123120313230 is 32313021321.

123120313230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×123120313230² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123120313197 and 123120313206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3915511 + ... + 3946829.

It is an arithmetic number, because the mean of its divisors is an integer number (4697530200).

Almost surely, 2^123120313230 is an apocalyptic number.

123120313230 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 123120313230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150320966400).

123120313230 is an abundant number, since it is smaller than the sum of its proper divisors (177521619570).

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

123120313230 is a wasteful number, since it uses less digits than its factorization.

123120313230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33609.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123120313230 its reverse (32313021321), we get a palindrome (155433334551).

The spelling of 123120313230 in words is "one hundred twenty-three billion, one hundred twenty million, three hundred thirteen thousand, two hundred thirty".