11530533019 has 2 divisors, whose sum is σ = 11530533020. Its totient is φ = 11530533018.

The previous prime is 11530532977. The next prime is 11530533043. The reversal of 11530533019 is 91033503511.

It is a strong prime.

It is an emirp because it is prime and its reverse (91033503511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11530533019 - 2²⁷ = 11396315291 is a prime.

It is a super-2 number, since 2×11530533019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11530533089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765266509 + 5765266510.

It is an arithmetic number, because the mean of its divisors is an integer number (5765266510).

Almost surely, 2^11530533019 is an apocalyptic number.

11530533019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11530533019 is an equidigital number, since it uses as much as digits as its factorization.

11530533019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6075, while the sum is 31.

The spelling of 11530533019 in words is "eleven billion, five hundred thirty million, five hundred thirty-three thousand, nineteen".