11641331 has 8 divisors (see below), whose sum is σ = 12689040. Its totient is φ = 10615392.

The previous prime is 11641327. The next prime is 11641351. The reversal of 11641331 is 13314611.

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 11641331 - 2² = 11641327 is a prime.

It is a super-2 number, since 2×11641331² = 271041174903122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11641351) 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 7 ways as a sum of consecutive naturals, for example, 4316 + ... + 6473.

It is an arithmetic number, because the mean of its divisors is an integer number (1586130).

Almost surely, 2^11641331 is an apocalyptic number.

11641331 is a deficient number, since it is larger than the sum of its proper divisors (1047709).

11641331 is a wasteful number, since it uses less digits than its factorization.

11641331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10885.

The product of its digits is 216, while the sum is 20.

The square root of 11641331 is about 3411.9394777751. The cubic root of 11641331 is about 226.6387742014.

Adding to 11641331 its reverse (13314611), we get a palindrome (24955942).

The spelling of 11641331 in words is "eleven million, six hundred forty-one thousand, three hundred thirty-one".