123366021120 has 576 divisors, whose sum is σ = 459950400000. Its totient is φ = 30482694144.

The previous prime is 123366021091. The next prime is 123366021157. The reversal of 123366021120 is 21120663321.

123366021120 is a `hidden beast` number, since 1 + 2 + 3 + 36 + 602 + 1 + 1 + 20 = 666.

123366021120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82298131 + ... + 82299629.

It is an arithmetic number, because the mean of its divisors is an integer number (798525000).

Almost surely, 2^123366021120 is an apocalyptic number.

123366021120 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 123366021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229975200000).

123366021120 is an abundant number, since it is smaller than the sum of its proper divisors (336584378880).

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

123366021120 is a wasteful number, since it uses less digits than its factorization.

123366021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598 (or 1575 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 123366021120 its reverse (21120663321), we get a palindrome (144486684441).

The spelling of 123366021120 in words is "one hundred twenty-three billion, three hundred sixty-six million, twenty-one thousand, one hundred twenty".