123120452 has 48 divisors (see below), whose sum is σ = 266152320. Its totient is φ = 48529152.

The previous prime is 123120427. The next prime is 123120479. The reversal of 123120452 is 254021321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148463 + ... + 149289.

It is an arithmetic number, because the mean of its divisors is an integer number (5544840).

Almost surely, 2^123120452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123120452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133076160).

123120452 is an abundant number, since it is smaller than the sum of its proper divisors (143031868).

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

123120452 is a wasteful number, since it uses less digits than its factorization.

123120452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 123120452 is about 11095.9655731261. The cubic root of 123120452 is about 497.4812692964.

Adding to 123120452 its reverse (254021321), we get a palindrome (377141773).

The spelling of 123120452 in words is "one hundred twenty-three million, one hundred twenty thousand, four hundred fifty-two".