1310005331889 has 4 divisors (see below), whose sum is σ = 1746673775856. Its totient is φ = 873336887924.

The previous prime is 1310005331807. The next prime is 1310005331891. The reversal of 1310005331889 is 9881335000131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1310005331889 - 2⁸ = 1310005331633 is a prime.

It is a super-2 number, since 2×1310005331889² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1310005331889.

It is not an unprimeable number, because it can be changed into a prime (1310005330889) 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 3 ways as a sum of consecutive naturals, for example, 218334221979 + ... + 218334221984.

It is an arithmetic number, because the mean of its divisors is an integer number (436668443964).

Almost surely, 2^{1310005331889} is an apocalyptic number.

It is an amenable number.

1310005331889 is a deficient number, since it is larger than the sum of its proper divisors (436668443967).

1310005331889 is an equidigital number, since it uses as much as digits as its factorization.

1310005331889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436668443966.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 1310005331889 in words is "one trillion, three hundred ten billion, five million, three hundred thirty-one thousand, eight hundred eighty-nine".