1131345035605 has 8 divisors (see below), whose sum is σ = 1357622343000. Its totient is φ = 905070494976.

The previous prime is 1131345035549. The next prime is 1131345035699. The reversal of 1131345035605 is 5065305431311.

It can be written as a sum of positive squares in 4 ways, for example, as 2298531249 + 1129046504356 = 47943^2 + 1062566^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131345035605 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350721 + ... + 1544569.

It is an arithmetic number, because the mean of its divisors is an integer number (169702792875).

Almost surely, 2^{1131345035605} is an apocalyptic number.

It is an amenable number.

1131345035605 is a deficient number, since it is larger than the sum of its proper divisors (226277307395).

1131345035605 is a wasteful number, since it uses less digits than its factorization.

1131345035605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383383.

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 1131345035605 in words is "one trillion, one hundred thirty-one billion, three hundred forty-five million, thirty-five thousand, six hundred five".