115421203 has 2 divisors, whose sum is σ = 115421204. Its totient is φ = 115421202.

The previous prime is 115421183. The next prime is 115421209. The reversal of 115421203 is 302124511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115421203 is a prime.

It is not a weakly prime, because it can be changed into another prime (115421209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57710601 + 57710602.

It is an arithmetic number, because the mean of its divisors is an integer number (57710602).

Almost surely, 2^115421203 is an apocalyptic number.

115421203 is a deficient number, since it is larger than the sum of its proper divisors (1).

115421203 is an equidigital number, since it uses as much as digits as its factorization.

115421203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 115421203 is about 10743.4260364187. The cubic root of 115421203 is about 486.8873960150.

Adding to 115421203 its reverse (302124511), we get a palindrome (417545714).

The spelling of 115421203 in words is "one hundred fifteen million, four hundred twenty-one thousand, two hundred three".