1242988369443 has 12 divisors (see below), whose sum is σ = 1889923836840. Its totient is φ = 785045285856.

The previous prime is 1242988369429. The next prime is 1242988369451. The reversal of 1242988369443 is 3449638892421.

1242988369443 is a `hidden beast` number, since 1 + 2 + 42 + 98 + 8 + 3 + 69 + 443 = 666.

It is not a de Polignac number, because 1242988369443 - 2⁵ = 1242988369411 is a prime.

It is a super-2 number, since 2×1242988369443² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1242988369243) 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 11 ways as a sum of consecutive naturals, for example, 3634468746 + ... + 3634469087.

It is an arithmetic number, because the mean of its divisors is an integer number (157493653070).

Almost surely, 2^{1242988369443} is an apocalyptic number.

1242988369443 is a deficient number, since it is larger than the sum of its proper divisors (646935467397).

1242988369443 is a wasteful number, since it uses less digits than its factorization.

1242988369443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7268937858 (or 7268937855 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 63.

The spelling of 1242988369443 in words is "one trillion, two hundred forty-two billion, nine hundred eighty-eight million, three hundred sixty-nine thousand, four hundred forty-three".