115303121 has 2 divisors, whose sum is σ = 115303122. Its totient is φ = 115303120.

The previous prime is 115303087. The next prime is 115303127. The reversal of 115303121 is 121303511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114725521 + 577600 = 10711^2 + 760^2 .

It is a cyclic number.

It is not a de Polignac number, because 115303121 - 2⁶ = 115303057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115303121.

It is not a weakly prime, because it can be changed into another prime (115303127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57651560 + 57651561.

It is an arithmetic number, because the mean of its divisors is an integer number (57651561).

Almost surely, 2^115303121 is an apocalyptic number.

It is an amenable number.

115303121 is a deficient number, since it is larger than the sum of its proper divisors (1).

115303121 is an equidigital number, since it uses as much as digits as its factorization.

115303121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 115303121 is about 10737.9290833941. The cubic root of 115303121 is about 486.7213021687.

Adding to 115303121 its reverse (121303511), we get a palindrome (236606632).

The spelling of 115303121 in words is "one hundred fifteen million, three hundred three thousand, one hundred twenty-one".