1115541310205 has 16 divisors (see below), whose sum is σ = 1579236363264. Its totient is φ = 740267043840.

The previous prime is 1115541310201. The next prime is 1115541310253. The reversal of 1115541310205 is 5020131455111.

It is a happy number.

It is not a de Polignac number, because 1115541310205 - 2² = 1115541310201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115541310201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514073252 + ... + 514075421.

It is an arithmetic number, because the mean of its divisors is an integer number (98702272704).

Almost surely, 2^{1115541310205} is an apocalyptic number.

It is an amenable number.

1115541310205 is a deficient number, since it is larger than the sum of its proper divisors (463695053059).

1115541310205 is a wasteful number, since it uses less digits than its factorization.

1115541310205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028148716.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 1115541310205 its reverse (5020131455111), we get a palindrome (6135672765316).

The spelling of 1115541310205 in words is "one trillion, one hundred fifteen billion, five hundred forty-one million, three hundred ten thousand, two hundred five".