115111011 has 8 divisors (see below), whose sum is σ = 153584640. Its totient is φ = 76689032.

The previous prime is 115110997. The next prime is 115111069. The reversal of 115111011 is 110111511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 115111011 - 2¹⁴ = 115094627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115111111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7371 + ... + 16868.

It is an arithmetic number, because the mean of its divisors is an integer number (19198080).

Almost surely, 2^115111011 is an apocalyptic number.

115111011 is a deficient number, since it is larger than the sum of its proper divisors (38473629).

115111011 is a wasteful number, since it uses less digits than its factorization.

115111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25825.

The product of its (nonzero) digits is 5, while the sum is 12.

The square root of 115111011 is about 10728.9799608350. The cubic root of 115111011 is about 486.4508382338.

Adding to 115111011 its reverse (110111511), we get a palindrome (225222522).

The spelling of 115111011 in words is "one hundred fifteen million, one hundred eleven thousand, eleven".