123442421130 has 96 divisors (see below), whose sum is σ = 388376861184. Its totient is φ = 26555678208.

The previous prime is 123442421093. The next prime is 123442421143. The reversal of 123442421130 is 31124244321.

123442421130 is a `hidden beast` number, since 1 + 2 + 3 + 442 + 4 + 211 + 3 + 0 = 666.

123442421130 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 = 123442421094 and 123442421103.

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, 5752242 + ... + 5773661.

It is an arithmetic number, because the mean of its divisors is an integer number (4045592304).

Almost surely, 2^123442421130 is an apocalyptic number.

123442421130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123442421130 is an abundant number, since it is smaller than the sum of its proper divisors (264934440054).

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

123442421130 is a wasteful number, since it uses less digits than its factorization.

123442421130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11525940 (or 11525937 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 123442421130 its reverse (31124244321), we get a palindrome (154566665451).

The spelling of 123442421130 in words is "one hundred twenty-three billion, four hundred forty-two million, four hundred twenty-one thousand, one hundred thirty".