115204111 has 4 divisors (see below), whose sum is σ = 125677224. Its totient is φ = 104731000.

The previous prime is 115204069. The next prime is 115204129. The reversal of 115204111 is 111402511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111402511 = 11 ⋅10127501.

It is not a de Polignac number, because 115204111 - 2⁷ = 115203983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115204511) 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, 5236540 + ... + 5236561.

It is an arithmetic number, because the mean of its divisors is an integer number (31419306).

Almost surely, 2^115204111 is an apocalyptic number.

115204111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115204111 is a deficient number, since it is larger than the sum of its proper divisors (10473113).

115204111 is a wasteful number, since it uses less digits than its factorization.

115204111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10473112.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 115204111 is about 10733.3178001958. The cubic root of 115204111 is about 486.5819475243.

Adding to 115204111 its reverse (111402511), we get a palindrome (226606622).

The spelling of 115204111 in words is "one hundred fifteen million, two hundred four thousand, one hundred eleven".