11641231 has 16 divisors (see below), whose sum is σ = 13754880. Its totient is φ = 9646560.

The previous prime is 11641229. The next prime is 11641247. The reversal of 11641231 is 13214611.

11641231 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11641231 - 2¹ = 11641229 is a prime.

It is a super-2 number, since 2×11641231² = 271036518390722, which contains 22 as substring.

It is a Duffinian number.

11641231 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 11641199 and 11641208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11641211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29125 + ... + 29521.

It is an arithmetic number, because the mean of its divisors is an integer number (859680).

Almost surely, 2^11641231 is an apocalyptic number.

11641231 is a deficient number, since it is larger than the sum of its proper divisors (2113649).

11641231 is an equidigital number, since it uses as much as digits as its factorization.

11641231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534.

The product of its digits is 144, while the sum is 19.

The square root of 11641231 is about 3411.9248233219. The cubic root of 11641231 is about 226.6381252509.

Adding to 11641231 its reverse (13214611), we get a palindrome (24855842).

The spelling of 11641231 in words is "eleven million, six hundred forty-one thousand, two hundred thirty-one".