1234423212442 has 64 divisors (see below), whose sum is σ = 2264905612800. Its totient is φ = 503413650432.

The previous prime is 1234423212427. The next prime is 1234423212469. The reversal of 1234423212442 is 2442123244321.

It is a junction number, because it is equal to n+sod(n) for n = 1234423212398 and 1234423212407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2842468 + ... + 3247840.

It is an arithmetic number, because the mean of its divisors is an integer number (35389150200).

Almost surely, 2^{1234423212442} is an apocalyptic number.

1234423212442 is a deficient number, since it is larger than the sum of its proper divisors (1030482400358).

1234423212442 is a wasteful number, since it uses less digits than its factorization.

1234423212442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405612 (or 405598 counting only the distinct ones).

The product of its digits is 73728, while the sum is 34.

Adding to 1234423212442 its reverse (2442123244321), we get a palindrome (3676546456763).

The spelling of 1234423212442 in words is "one trillion, two hundred thirty-four billion, four hundred twenty-three million, two hundred twelve thousand, four hundred forty-two".