11305031131205 has 64 divisors (see below), whose sum is σ = 15965288870400. Its totient is φ = 7681092959232.

The previous prime is 11305031131181. The next prime is 11305031131223. The reversal of 11305031131205 is 50213113050311.

It is a happy number.

It is not a de Polignac number, because 11305031131205 - 2¹⁰ = 11305031130181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 852109982 + ... + 852123248.

It is an arithmetic number, because the mean of its divisors is an integer number (249457638600).

Almost surely, 2^{11305031131205} is an apocalyptic number.

It is an amenable number.

11305031131205 is a deficient number, since it is larger than the sum of its proper divisors (4660257739195).

11305031131205 is a wasteful number, since it uses less digits than its factorization.

11305031131205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17803 (or 17789 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

Adding to 11305031131205 its reverse (50213113050311), we get a palindrome (61518144181516).

The spelling of 11305031131205 in words is "eleven trillion, three hundred five billion, thirty-one million, one hundred thirty-one thousand, two hundred five".