11287019503 has 2 divisors, whose sum is σ = 11287019504. Its totient is φ = 11287019502.

The previous prime is 11287019489. The next prime is 11287019539. The reversal of 11287019503 is 30591078211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11287019503 is a prime.

It is a super-2 number, since 2×11287019503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11287029503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5643509751 + 5643509752.

It is an arithmetic number, because the mean of its divisors is an integer number (5643509752).

Almost surely, 2^11287019503 is an apocalyptic number.

11287019503 is a deficient number, since it is larger than the sum of its proper divisors (1).

11287019503 is an equidigital number, since it uses as much as digits as its factorization.

11287019503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 37.

The spelling of 11287019503 in words is "eleven billion, two hundred eighty-seven million, nineteen thousand, five hundred three".