1247132324257 has 8 divisors (see below), whose sum is σ = 1249608135776. Its totient is φ = 1244657601792.

The previous prime is 1247132324237. The next prime is 1247132324279. The reversal of 1247132324257 is 7524232317421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1247132324257 - 2³¹ = 1244984840609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1247132324237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2039758 + ... + 2579704.

It is an arithmetic number, because the mean of its divisors is an integer number (156201016972).

Almost surely, 2^{1247132324257} is an apocalyptic number.

It is an amenable number.

1247132324257 is a deficient number, since it is larger than the sum of its proper divisors (2475811519).

1247132324257 is an equidigital number, since it uses as much as digits as its factorization.

1247132324257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544527.

The product of its digits is 564480, while the sum is 43.

The spelling of 1247132324257 in words is "one trillion, two hundred forty-seven billion, one hundred thirty-two million, three hundred twenty-four thousand, two hundred fifty-seven".