115121101 has 2 divisors, whose sum is σ = 115121102. Its totient is φ = 115121100.

The previous prime is 115121089. The next prime is 115121117. The reversal of 115121101 is 101121511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60435076 + 54686025 = 7774^2 + 7395^2 .

It is a cyclic number.

It is not a de Polignac number, because 115121101 - 2¹⁵ = 115088333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115121131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57560550 + 57560551.

It is an arithmetic number, because the mean of its divisors is an integer number (57560551).

Almost surely, 2^115121101 is an apocalyptic number.

It is an amenable number.

115121101 is a deficient number, since it is larger than the sum of its proper divisors (1).

115121101 is an equidigital number, since it uses as much as digits as its factorization.

115121101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10, while the sum is 13.

The square root of 115121101 is about 10729.4501723061. The cubic root of 115121101 is about 486.4650510229.

Adding to 115121101 its reverse (101121511), we get a palindrome (216242612).

The spelling of 115121101 in words is "one hundred fifteen million, one hundred twenty-one thousand, one hundred one".