1131781324593 has 16 divisors (see below), whose sum is σ = 1511750953856. Its totient is φ = 753167479680.

The previous prime is 1131781324577. The next prime is 1131781324601. The reversal of 1131781324593 is 3954231871311.

It is not a de Polignac number, because 1131781324593 - 2⁴ = 1131781324577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131781324523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3684555 + ... + 3979887.

It is an arithmetic number, because the mean of its divisors is an integer number (94484434616).

Almost surely, 2^{1131781324593} is an apocalyptic number.

It is an amenable number.

1131781324593 is a deficient number, since it is larger than the sum of its proper divisors (379969629263).

1131781324593 is a wasteful number, since it uses less digits than its factorization.

1131781324593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297624.

The product of its digits is 544320, while the sum is 48.

The spelling of 1131781324593 in words is "one trillion, one hundred thirty-one billion, seven hundred eighty-one million, three hundred twenty-four thousand, five hundred ninety-three".