115131354211 has 4 divisors (see below), whose sum is σ = 115579336392. Its totient is φ = 114683372032.

The previous prime is 115131354157. The next prime is 115131354253. The reversal of 115131354211 is 112453131511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 115131354211 - 2¹¹ = 115131352163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115131354211.

It is not an unprimeable number, because it can be changed into a prime (115131354011) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 223990705 + ... + 223991218.

It is an arithmetic number, because the mean of its divisors is an integer number (28894834098).

Almost surely, 2^115131354211 is an apocalyptic number.

115131354211 is a deficient number, since it is larger than the sum of its proper divisors (447982181).

115131354211 is an equidigital number, since it uses as much as digits as its factorization.

115131354211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447982180.

The product of its digits is 1800, while the sum is 28.

Adding to 115131354211 its reverse (112453131511), we get a palindrome (227584485722).

The spelling of 115131354211 in words is "one hundred fifteen billion, one hundred thirty-one million, three hundred fifty-four thousand, two hundred eleven".