1242919985108 has 24 divisors (see below), whose sum is σ = 2300037621504. Its totient is φ = 586744286400.

The previous prime is 1242919985059. The next prime is 1242919985113. The reversal of 1242919985108 is 8015899192421.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 122233310 + ... + 122243477.

It is an arithmetic number, because the mean of its divisors is an integer number (95834900896).

Almost surely, 2^{1242919985108} is an apocalyptic number.

It is an amenable number.

1242919985108 is a deficient number, since it is larger than the sum of its proper divisors (1057117636396).

1242919985108 is a wasteful number, since it uses less digits than its factorization.

1242919985108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244476863 (or 244476861 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 59.

The spelling of 1242919985108 in words is "one trillion, two hundred forty-two billion, nine hundred nineteen million, nine hundred eighty-five thousand, one hundred eight".