11287787503 has 2 divisors, whose sum is σ = 11287787504. Its totient is φ = 11287787502.

The previous prime is 11287787491. The next prime is 11287787557. The reversal of 11287787503 is 30578778211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11287787503 - 2¹⁷ = 11287656431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11287782503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5643893751 + 5643893752.

It is an arithmetic number, because the mean of its divisors is an integer number (5643893752).

Almost surely, 2^11287787503 is an apocalyptic number.

11287787503 is a deficient number, since it is larger than the sum of its proper divisors (1).

11287787503 is an equidigital number, since it uses as much as digits as its factorization.

11287787503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658560, while the sum is 49.

The spelling of 11287787503 in words is "eleven billion, two hundred eighty-seven million, seven hundred eighty-seven thousand, five hundred three".