11530640633 has 4 divisors (see below), whose sum is σ = 11726075280. Its totient is φ = 11335205988.

The previous prime is 11530640629. The next prime is 11530640651. The reversal of 11530640633 is 33604603511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33604603511 = 17 ⋅1976741383.

It is a cyclic number.

It is not a de Polignac number, because 11530640633 - 2² = 11530640629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11530640633.

It is not an unprimeable number, because it can be changed into a prime (11530640603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97717235 + ... + 97717352.

It is an arithmetic number, because the mean of its divisors is an integer number (2931518820).

Almost surely, 2^11530640633 is an apocalyptic number.

It is an amenable number.

11530640633 is a deficient number, since it is larger than the sum of its proper divisors (195434647).

11530640633 is an equidigital number, since it uses as much as digits as its factorization.

11530640633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195434646.

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 11530640633 in words is "eleven billion, five hundred thirty million, six hundred forty thousand, six hundred thirty-three".