11140432321 has 4 divisors (see below), whose sum is σ = 11165809600. Its totient is φ = 11115055044.

The previous prime is 11140432307. The next prime is 11140432327. The reversal of 11140432321 is 12323404111.

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: 12323404111 = 887 ⋅13893353.

It is a cyclic number.

It is not a de Polignac number, because 11140432321 - 2¹⁵ = 11140399553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11140432292 and 11140432301.

It is not an unprimeable number, because it can be changed into a prime (11140432327) 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 3 ways as a sum of consecutive naturals, for example, 12687981 + ... + 12688858.

It is an arithmetic number, because the mean of its divisors is an integer number (2791452400).

Almost surely, 2^11140432321 is an apocalyptic number.

It is an amenable number.

11140432321 is a deficient number, since it is larger than the sum of its proper divisors (25377279).

11140432321 is an equidigital number, since it uses as much as digits as its factorization.

11140432321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25377278.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 11140432321 its reverse (12323404111), we get a palindrome (23463836432).

The spelling of 11140432321 in words is "eleven billion, one hundred forty million, four hundred thirty-two thousand, three hundred twenty-one".