11380631 has 4 divisors (see below), whose sum is σ = 11439792. Its totient is φ = 11321472.

The previous prime is 11380619. The next prime is 11380651. The reversal of 11380631 is 13608311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11380631 - 2¹⁴ = 11364247 is a prime.

It is a super-3 number, since 3×11380631³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11380597 and 11380606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11380651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29291 + ... + 29676.

It is an arithmetic number, because the mean of its divisors is an integer number (2859948).

Almost surely, 2^11380631 is an apocalyptic number.

11380631 is a deficient number, since it is larger than the sum of its proper divisors (59161).

11380631 is an equidigital number, since it uses as much as digits as its factorization.

11380631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59160.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11380631 is about 3373.5190825012. The cubic root of 11380631 is about 224.9341766301.

Adding to 11380631 its reverse (13608311), we get a palindrome (24988942).

The spelling of 11380631 in words is "eleven million, three hundred eighty thousand, six hundred thirty-one".