11621013 has 16 divisors (see below), whose sum is σ = 16505856. Its totient is φ = 7247360.

The previous prime is 11621011. The next prime is 11621017. The reversal of 11621013 is 31012611.

It is a cyclic number.

It is not a de Polignac number, because 11621013 - 2¹ = 11621011 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11620983 and 11621001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621011) 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 15 ways as a sum of consecutive naturals, for example, 9145 + ... + 10337.

It is an arithmetic number, because the mean of its divisors is an integer number (1031616).

Almost surely, 2^11621013 is an apocalyptic number.

It is an amenable number.

11621013 is a deficient number, since it is larger than the sum of its proper divisors (4884843).

11621013 is a wasteful number, since it uses less digits than its factorization.

11621013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 11621013 is about 3408.9606920585. The cubic root of 11621013 is about 226.5068440349.

Adding to 11621013 its reverse (31012611), we get a palindrome (42633624).

The spelling of 11621013 in words is "eleven million, six hundred twenty-one thousand, thirteen".