1309290983947 has 2 divisors, whose sum is σ = 1309290983948. Its totient is φ = 1309290983946.

The previous prime is 1309290983887. The next prime is 1309290983981. The reversal of 1309290983947 is 7493890929031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1309290983947 - 2³⁵ = 1274931245579 is a prime.

It is a super-3 number, since 3×1309290983947³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1309290983447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654645491973 + 654645491974.

It is an arithmetic number, because the mean of its divisors is an integer number (654645491974).

Almost surely, 2^{1309290983947} is an apocalyptic number.

1309290983947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309290983947 is an equidigital number, since it uses as much as digits as its factorization.

1309290983947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26453952, while the sum is 64.

The spelling of 1309290983947 in words is "one trillion, three hundred nine billion, two hundred ninety million, nine hundred eighty-three thousand, nine hundred forty-seven".