11541321 has 12 divisors (see below), whose sum is σ = 18186480. Its totient is φ = 6994680.

The previous prime is 11541319. The next prime is 11541323. The reversal of 11541321 is 12314511.

It is an interprime number because it is at equal distance from previous prime (11541319) and next prime (11541323).

It is not a de Polignac number, because 11541321 - 2¹ = 11541319 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11541294 and 11541303.

It is not an unprimeable number, because it can be changed into a prime (11541323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58191 + ... + 58388.

It is an arithmetic number, because the mean of its divisors is an integer number (1515540).

Almost surely, 2^11541321 is an apocalyptic number.

11541321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11541321 is a deficient number, since it is larger than the sum of its proper divisors (6645159).

11541321 is a wasteful number, since it uses less digits than its factorization.

11541321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116596 (or 116593 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 11541321 is about 3397.2519777020. The cubic root of 11541321 is about 225.9878932090.

Adding to 11541321 its reverse (12314511), we get a palindrome (23855832).

The spelling of 11541321 in words is "eleven million, five hundred forty-one thousand, three hundred twenty-one".