11621313 has 20 divisors (see below), whose sum is σ = 18939888. Its totient is φ = 7042680.

The previous prime is 11621303. The next prime is 11621321. The reversal of 11621313 is 31312611.

11621313 is a `hidden beast` number, since 11 + 621 + 31 + 3 = 666.

It is not a de Polignac number, because 11621313 - 2⁹ = 11620801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11621303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5631 + ... + 7412.

Almost surely, 2^11621313 is an apocalyptic number.

It is an amenable number.

11621313 is a deficient number, since it is larger than the sum of its proper divisors (7318575).

11621313 is a wasteful number, since it uses less digits than its factorization.

11621313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13066 (or 13057 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 11621313 is about 3409.0046934553. The cubic root of 11621313 is about 226.5087931326.

Adding to 11621313 its reverse (31312611), we get a palindrome (42933924).

The spelling of 11621313 in words is "eleven million, six hundred twenty-one thousand, three hundred thirteen".