11631330 has 64 divisors (see below), whose sum is σ = 32382720. Its totient is φ = 2965248.

The previous prime is 11631317. The next prime is 11631337. The reversal of 11631330 is 3313611.

11631330 is a `hidden beast` number, since 1 + 1 + 631 + 3 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11631337) 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 31 ways as a sum of consecutive naturals, for example, 5274 + ... + 7146.

It is an arithmetic number, because the mean of its divisors is an integer number (505980).

Almost surely, 2^11631330 is an apocalyptic number.

11631330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11631330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16191360).

11631330 is an abundant number, since it is smaller than the sum of its proper divisors (20751390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11631330 is a wasteful number, since it uses less digits than its factorization.

11631330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 11631330 is about 3410.4735741536. The cubic root of 11631330 is about 226.5738542546.

Adding to 11631330 its reverse (3313611), we get a palindrome (14944941).

The spelling of 11631330 in words is "eleven million, six hundred thirty-one thousand, three hundred thirty".