11641021 has 8 divisors (see below), whose sum is σ = 13325184. Its totient is φ = 9962160.

The previous prime is 11641009. The next prime is 11641033. The reversal of 11641021 is 12014611.

11641021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11641009) and next prime (11641033).

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 11641021 - 2⁵ = 11640989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11640986 and 11641004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11641001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6411 + ... + 8023.

It is an arithmetic number, because the mean of its divisors is an integer number (1665648).

Almost surely, 2^11641021 is an apocalyptic number.

It is an amenable number.

11641021 is a deficient number, since it is larger than the sum of its proper divisors (1684163).

11641021 is a wasteful number, since it uses less digits than its factorization.

11641021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 11641021 is about 3411.8940487653. The cubic root of 11641021 is about 226.6367624428.

Adding to 11641021 its reverse (12014611), we get a palindrome (23655632).

The spelling of 11641021 in words is "eleven million, six hundred forty-one thousand, twenty-one".