115611101 has 4 divisors (see below), whose sum is σ = 122411772. Its totient is φ = 108810432.

The previous prime is 115611079. The next prime is 115611131. The reversal of 115611101 is 101116511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101116511 = 127 ⋅796193.

It can be written as a sum of positive squares in 2 ways, for example, as 65626201 + 49984900 = 8101^2 + 7070^2 .

It is a cyclic number.

It is not a de Polignac number, because 115611101 - 2²² = 111416797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6800653 = 115611101 / (1 + 1 + 5 + 6 + 1 + 1 + 1 + 0 + 1).

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 115611101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115611131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3400310 + ... + 3400343.

It is an arithmetic number, because the mean of its divisors is an integer number (30602943).

Almost surely, 2^115611101 is an apocalyptic number.

It is an amenable number.

115611101 is a deficient number, since it is larger than the sum of its proper divisors (6800671).

115611101 is an equidigital number, since it uses as much as digits as its factorization.

115611101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6800670.

The product of its (nonzero) digits is 30, while the sum is 17.

The square root of 115611101 is about 10752.2602740075. The cubic root of 115611101 is about 487.1542686527.

Adding to 115611101 its reverse (101116511), we get a palindrome (216727612).

The spelling of 115611101 in words is "one hundred fifteen million, six hundred eleven thousand, one hundred one".