123424400120 has 64 divisors (see below), whose sum is σ = 317409684480. Its totient is φ = 42312583296.

The previous prime is 123424400101. The next prime is 123424400131. The reversal of 123424400120 is 21004424321.

It is a congruent number.

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, 3934337 + ... + 3965583.

It is an arithmetic number, because the mean of its divisors is an integer number (4959526320).

Almost surely, 2^123424400120 is an apocalyptic number.

123424400120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123424400120 is an abundant number, since it is smaller than the sum of its proper divisors (193985284360).

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

123424400120 is a wasteful number, since it uses less digits than its factorization.

123424400120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45372 (or 45368 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 123424400120 its reverse (21004424321), we get a palindrome (144428824441).

The spelling of 123424400120 in words is "one hundred twenty-three billion, four hundred twenty-four million, four hundred thousand, one hundred twenty".