11034432021 has 4 divisors (see below), whose sum is σ = 14712576032. Its totient is φ = 7356288012.

The previous prime is 11034431977. The next prime is 11034432089. The reversal of 11034432021 is 12023443011.

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: 12023443011 = 3 ⋅4007814337.

It is not a de Polignac number, because 11034432021 - 2²¹ = 11032334869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11034432121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1839072001 + ... + 1839072006.

It is an arithmetic number, because the mean of its divisors is an integer number (3678144008).

Almost surely, 2^11034432021 is an apocalyptic number.

It is an amenable number.

11034432021 is a deficient number, since it is larger than the sum of its proper divisors (3678144011).

11034432021 is an equidigital number, since it uses as much as digits as its factorization.

11034432021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678144010.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11034432021 its reverse (12023443011), we get a palindrome (23057875032).

The spelling of 11034432021 in words is "eleven billion, thirty-four million, four hundred thirty-two thousand, twenty-one".