11151215503 has 2 divisors, whose sum is σ = 11151215504. Its totient is φ = 11151215502.

The previous prime is 11151215497. The next prime is 11151215513. The reversal of 11151215503 is 30551215111.

It is a weak prime.

It is an emirp because it is prime and its reverse (30551215111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11151215503 - 2¹³ = 11151207311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11151215513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5575607751 + 5575607752.

It is an arithmetic number, because the mean of its divisors is an integer number (5575607752).

Almost surely, 2^11151215503 is an apocalyptic number.

11151215503 is a deficient number, since it is larger than the sum of its proper divisors (1).

11151215503 is an equidigital number, since it uses as much as digits as its factorization.

11151215503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 11151215503 in words is "eleven billion, one hundred fifty-one million, two hundred fifteen thousand, five hundred three".