1131730305065 has 4 divisors (see below), whose sum is σ = 1358076366084. Its totient is φ = 905384244048.

The previous prime is 1131730305061. The next prime is 1131730305089. The reversal of 1131730305065 is 5605030371311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 750205428736 + 381524876329 = 866144^2 + 617677^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131730305065 - 2² = 1131730305061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131730305061) 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 in 3 ways as a sum of consecutive naturals, for example, 113173030502 + ... + 113173030511.

It is an arithmetic number, because the mean of its divisors is an integer number (339519091521).

Almost surely, 2^{1131730305065} is an apocalyptic number.

It is an amenable number.

1131730305065 is a deficient number, since it is larger than the sum of its proper divisors (226346061019).

1131730305065 is an equidigital number, since it uses as much as digits as its factorization.

1131730305065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226346061018.

The product of its (nonzero) digits is 28350, while the sum is 35.

Adding to 1131730305065 its reverse (5605030371311), we get a palindrome (6736760676376).

The spelling of 1131730305065 in words is "one trillion, one hundred thirty-one billion, seven hundred thirty million, three hundred five thousand, sixty-five".