12280823 has 2 divisors, whose sum is σ = 12280824. Its totient is φ = 12280822.

The previous prime is 12280813. The next prime is 12280831. The reversal of 12280823 is 32808221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12280823 - 2⁶ = 12280759 is a prime.

It is a super-2 number, since 2×12280823² = 301637227114658, which contains 22 as substring.

It is equal to p₈₀₅₂₄₇ and since 12280823 and 805247 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 12280792 and 12280801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12280813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6140411 + 6140412.

It is an arithmetic number, because the mean of its divisors is an integer number (6140412).

Almost surely, 2^12280823 is an apocalyptic number.

12280823 is a deficient number, since it is larger than the sum of its proper divisors (1).

12280823 is an equidigital number, since it uses as much as digits as its factorization.

12280823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 12280823 is about 3504.4005193471. The cubic root of 12280823 is about 230.7149961752.

The spelling of 12280823 in words is "twelve million, two hundred eighty thousand, eight hundred twenty-three".