11552432321 has 8 divisors (see below), whose sum is σ = 11745944640. Its totient is φ = 11359540368.

The previous prime is 11552432293. The next prime is 11552432393. The reversal of 11552432321 is 12323425511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11552432321 - 2¹⁸ = 11552170177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11552432921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117461 + ... + 192098.

It is an arithmetic number, because the mean of its divisors is an integer number (1468243080).

Almost surely, 2^11552432321 is an apocalyptic number.

It is an amenable number.

11552432321 is a deficient number, since it is larger than the sum of its proper divisors (193512319).

11552432321 is an equidigital number, since it uses as much as digits as its factorization.

11552432321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310183.

The product of its digits is 7200, while the sum is 29.

Adding to 11552432321 its reverse (12323425511), we get a palindrome (23875857832).

The spelling of 11552432321 in words is "eleven billion, five hundred fifty-two million, four hundred thirty-two thousand, three hundred twenty-one".