11681310 has 32 divisors (see below), whose sum is σ = 28721952. Its totient is φ = 3038720.

The previous prime is 11681303. The next prime is 11681311. The reversal of 11681310 is 1318611.

It is a super-2 number, since 2×11681310² = 272906006632200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11681311) 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 15 ways as a sum of consecutive naturals, for example, 3519 + ... + 5978.

It is an arithmetic number, because the mean of its divisors is an integer number (897561).

Almost surely, 2^11681310 is an apocalyptic number.

11681310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11681310 is an abundant number, since it is smaller than the sum of its proper divisors (17040642).

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

11681310 is a wasteful number, since it uses less digits than its factorization.

11681310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9548.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 11681310 is about 3417.7931476320. The cubic root of 11681310 is about 226.8979209439.

Adding to 11681310 its reverse (1318611), we get a palindrome (12999921).

The spelling of 11681310 in words is "eleven million, six hundred eighty-one thousand, three hundred ten".