12320633 has 4 divisors (see below), whose sum is σ = 13268388. Its totient is φ = 11372880.

The previous prime is 12320599. The next prime is 12320647. The reversal of 12320633 is 33602321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33602321 = 47 ⋅714943.

It can be written as a sum of positive squares in 2 ways, for example, as 7689529 + 4631104 = 2773^2 + 2152^2 .

It is a cyclic number.

It is not a de Polignac number, because 12320633 - 2¹⁰ = 12319609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473858 + ... + 473883.

It is an arithmetic number, because the mean of its divisors is an integer number (3317097).

Almost surely, 2^12320633 is an apocalyptic number.

12320633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12320633 is a deficient number, since it is larger than the sum of its proper divisors (947755).

12320633 is an equidigital number, since it uses as much as digits as its factorization.

12320633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947754.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 12320633 is about 3510.0759251048. The cubic root of 12320633 is about 230.9640255567.

Adding to 12320633 its reverse (33602321), we get a palindrome (45922954).

The spelling of 12320633 in words is "twelve million, three hundred twenty thousand, six hundred thirty-three".