123434552442 has 24 divisors (see below), whose sum is σ = 262245038976. Its totient is φ = 38724564928.

The previous prime is 123434552413. The next prime is 123434552453. The reversal of 123434552442 is 244255434321.

It is a self number, because there is not a number n which added to its sum of digits gives 123434552442.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35590698 + ... + 35594165.

It is an arithmetic number, because the mean of its divisors is an integer number (10926876624).

Almost surely, 2^123434552442 is an apocalyptic number.

123434552442 is an abundant number, since it is smaller than the sum of its proper divisors (138810486534).

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

123434552442 is a wasteful number, since it uses less digits than its factorization.

123434552442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71184902 (or 71184885 counting only the distinct ones).

The product of its digits is 460800, while the sum is 39.

Adding to 123434552442 its reverse (244255434321), we get a palindrome (367689986763).

The spelling of 123434552442 in words is "one hundred twenty-three billion, four hundred thirty-four million, five hundred fifty-two thousand, four hundred forty-two".