11501503103 has 2 divisors, whose sum is σ = 11501503104. Its totient is φ = 11501503102.

The previous prime is 11501503063. The next prime is 11501503127. The reversal of 11501503103 is 30130510511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11501503103 - 2²⁰ = 11500454527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11501503133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5750751551 + 5750751552.

It is an arithmetic number, because the mean of its divisors is an integer number (5750751552).

Almost surely, 2^11501503103 is an apocalyptic number.

11501503103 is a deficient number, since it is larger than the sum of its proper divisors (1).

11501503103 is an equidigital number, since it uses as much as digits as its factorization.

11501503103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 20.

The spelling of 11501503103 in words is "eleven billion, five hundred one million, five hundred three thousand, one hundred three".