1247303370899 has 2 divisors, whose sum is σ = 1247303370900. Its totient is φ = 1247303370898.

The previous prime is 1247303370869. The next prime is 1247303370947. The reversal of 1247303370899 is 9980733037421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1247303370899 - 2²⁰ = 1247302322323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1247303370839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623651685449 + 623651685450.

It is an arithmetic number, because the mean of its divisors is an integer number (623651685450).

Almost surely, 2^{1247303370899} is an apocalyptic number.

1247303370899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1247303370899 is an equidigital number, since it uses as much as digits as its factorization.

1247303370899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6858432, while the sum is 56.

The spelling of 1247303370899 in words is "one trillion, two hundred forty-seven billion, three hundred three million, three hundred seventy thousand, eight hundred ninety-nine".