12320011 has 4 divisors (see below), whose sum is σ = 13440024. Its totient is φ = 11200000.

The previous prime is 12319997. The next prime is 12320017. The reversal of 12320011 is 11002321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11002321 = 11 ⋅1000211.

It is a cyclic number.

It is not a de Polignac number, because 12320011 - 2²¹ = 10222859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12320011.

It is not an unprimeable number, because it can be changed into a prime (12320017) 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, 559990 + ... + 560011.

It is an arithmetic number, because the mean of its divisors is an integer number (3360006).

Almost surely, 2^12320011 is an apocalyptic number.

12320011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12320011 is a deficient number, since it is larger than the sum of its proper divisors (1120013).

12320011 is a wasteful number, since it uses less digits than its factorization.

12320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120012.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 12320011 is about 3509.9873219144. The cubic root of 12320011 is about 230.9601387964.

Adding to 12320011 its reverse (11002321), we get a palindrome (23322332).

It can be divided in two parts, 12 and 320011, that added together give a palindrome (320023).

The spelling of 12320011 in words is "twelve million, three hundred twenty thousand, eleven".