1247130743039 has 32 divisors (see below), whose sum is σ = 1310387478528. Its totient is φ = 1185528960000.

The previous prime is 1247130743011. The next prime is 1247130743051. The reversal of 1247130743039 is 9303470317421.

It is a cyclic number.

It is not a de Polignac number, because 1247130743039 - 2⁸ = 1247130742783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247130743839) by changing a digit.

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, 343465754 + ... + 343469384.

It is an arithmetic number, because the mean of its divisors is an integer number (40949608704).

Almost surely, 2^{1247130743039} is an apocalyptic number.

1247130743039 is a deficient number, since it is larger than the sum of its proper divisors (63256735489).

1247130743039 is a wasteful number, since it uses less digits than its factorization.

1247130743039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4599.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 1247130743039 in words is "one trillion, two hundred forty-seven billion, one hundred thirty million, seven hundred forty-three thousand, thirty-nine".