123012020120 has 128 divisors (see below), whose sum is σ = 303763046400. Its totient is φ = 44462131200.

The previous prime is 123012020119. The next prime is 123012020149. The reversal of 123012020120 is 21020210321.

It is a happy number.

123012020120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 123012020095 and 123012020104.

It is a congruent number.

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, 96177641 + ... + 96178919.

It is an arithmetic number, because the mean of its divisors is an integer number (2373148800).

Almost surely, 2^123012020120 is an apocalyptic number.

123012020120 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 123012020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151881523200).

123012020120 is an abundant number, since it is smaller than the sum of its proper divisors (180751026280).

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

123012020120 is a wasteful number, since it uses less digits than its factorization.

123012020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449 (or 2445 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 123012020120 its reverse (21020210321), we get a palindrome (144032230441).

The spelling of 123012020120 in words is "one hundred twenty-three billion, twelve million, twenty thousand, one hundred twenty".