10243420123442 has 32 divisors (see below), whose sum is σ = 17663537203200. Its totient is φ = 4406200016400.

The previous prime is 10243420123421. The next prime is 10243420123459. The reversal of 10243420123442 is 24432102434201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10243420123399 and 10243420123408.

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 15 ways as a sum of consecutive naturals, for example, 13069142 + ... + 13830737.

It is an arithmetic number, because the mean of its divisors is an integer number (551985537600).

Almost surely, 2^{10243420123442} is an apocalyptic number.

10243420123442 is a deficient number, since it is larger than the sum of its proper divisors (7420117079758).

10243420123442 is a wasteful number, since it uses less digits than its factorization.

10243420123442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26900822.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 10243420123442 its reverse (24432102434201), we get a palindrome (34675522557643).

The spelling of 10243420123442 in words is "ten trillion, two hundred forty-three billion, four hundred twenty million, one hundred twenty-three thousand, four hundred forty-two".