1243124269384 has 16 divisors (see below), whose sum is σ = 2331482453820. Its totient is φ = 621395615040.

The previous prime is 1243124269327. The next prime is 1243124269411. The reversal of 1243124269384 is 4839624213421.

It can be written as a sum of positive squares in 2 ways, for example, as 1228838760900 + 14285508484 = 1108530^2 + 119522^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20783227 + ... + 20842954.

Almost surely, 2^{1243124269384} is an apocalyptic number.

It is an amenable number.

1243124269384 is a deficient number, since it is larger than the sum of its proper divisors (1088358184436).

1243124269384 is a wasteful number, since it uses less digits than its factorization.

1243124269384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41629920 (or 41629916 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 49.

The spelling of 1243124269384 in words is "one trillion, two hundred forty-three billion, one hundred twenty-four million, two hundred sixty-nine thousand, three hundred eighty-four".