115551100311 has 4 divisors (see below), whose sum is σ = 154068133752. Its totient is φ = 77034066872.

The previous prime is 115551100261. The next prime is 115551100337. The reversal of 115551100311 is 113001155511.

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 115551100311 - 2⁹ = 115551099799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115551100351) 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 3 ways as a sum of consecutive naturals, for example, 19258516716 + ... + 19258516721.

It is an arithmetic number, because the mean of its divisors is an integer number (38517033438).

Almost surely, 2^115551100311 is an apocalyptic number.

115551100311 is a deficient number, since it is larger than the sum of its proper divisors (38517033441).

115551100311 is an equidigital number, since it uses as much as digits as its factorization.

115551100311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38517033440.

The product of its (nonzero) digits is 375, while the sum is 24.

Adding to 115551100311 its reverse (113001155511), we get a palindrome (228552255822).

The spelling of 115551100311 in words is "one hundred fifteen billion, five hundred fifty-one million, one hundred thousand, three hundred eleven".