1310001289 has 2 divisors, whose sum is σ = 1310001290. Its totient is φ = 1310001288.

The previous prime is 1310001281. The next prime is 1310001347. The reversal of 1310001289 is 9821000131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1199583225 + 110418064 = 34635^2 + 10508^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310001289 - 2³ = 1310001281 is a prime.

It is a super-2 number, since 2×1310001289² = 3432206754363323042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1310001281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655000644 + 655000645.

It is an arithmetic number, because the mean of its divisors is an integer number (655000645).

Almost surely, 2^1310001289 is an apocalyptic number.

It is an amenable number.

1310001289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310001289 is an equidigital number, since it uses as much as digits as its factorization.

1310001289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1310001289 is about 36193.9399485604. The cubic root of 1310001289 is about 1094.1845402447.

The spelling of 1310001289 in words is "one billion, three hundred ten million, one thousand, two hundred eighty-nine".