11515000103203 has 2 divisors, whose sum is σ = 11515000103204. Its totient is φ = 11515000103202.

The previous prime is 11515000103153. The next prime is 11515000103227. The reversal of 11515000103203 is 30230100051511.

11515000103203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11515000103203 - 2²¹ = 11514998006051 is a prime.

It is not a weakly prime, because it can be changed into another prime (11515000103263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5757500051601 + 5757500051602.

It is an arithmetic number, because the mean of its divisors is an integer number (5757500051602).

Almost surely, 2^{11515000103203} is an apocalyptic number.

11515000103203 is a deficient number, since it is larger than the sum of its proper divisors (1).

11515000103203 is an equidigital number, since it uses as much as digits as its factorization.

11515000103203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 22.

Adding to 11515000103203 its reverse (30230100051511), we get a palindrome (41745100154714).

The spelling of 11515000103203 in words is "eleven trillion, five hundred fifteen billion, one hundred three thousand, two hundred three".