11620311 has 4 divisors (see below), whose sum is σ = 15493752. Its totient is φ = 7746872.

The previous prime is 11620289. The next prime is 11620339. The reversal of 11620311 is 11302611.

11620311 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 11620311 - 2⁹ = 11619799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11620351) 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, 1936716 + ... + 1936721.

It is an arithmetic number, because the mean of its divisors is an integer number (3873438).

Almost surely, 2^11620311 is an apocalyptic number.

11620311 is a deficient number, since it is larger than the sum of its proper divisors (3873441).

11620311 is an equidigital number, since it uses as much as digits as its factorization.

11620311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3873440.

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

The square root of 11620311 is about 3408.8577265706. The cubic root of 11620311 is about 226.5022830153.

Adding to 11620311 its reverse (11302611), we get a palindrome (22922922).

The spelling of 11620311 in words is "eleven million, six hundred twenty thousand, three hundred eleven".