123430123242 has 56 divisors (see below), whose sum is σ = 277663096800. Its totient is φ = 41132658600.

The previous prime is 123430123237. The next prime is 123430123247. The reversal of 123430123242 is 242321034321.

123430123242 is a `hidden beast` number, since 1 + 2 + 34 + 301 + 2 + 324 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (123430123237) and next prime (123430123247).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (123430123247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7210009 + ... + 7227107.

Almost surely, 2^123430123242 is an apocalyptic number.

123430123242 is an abundant number, since it is smaller than the sum of its proper divisors (154232973558).

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

123430123242 is an equidigital number, since it uses as much as digits as its factorization.

123430123242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22070 (or 22055 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 123430123242 its reverse (242321034321), we get a palindrome (365751157563).

The spelling of 123430123242 in words is "one hundred twenty-three billion, four hundred thirty million, one hundred twenty-three thousand, two hundred forty-two".