12305263 has 4 divisors (see below), whose sum is σ = 13029120. Its totient is φ = 11581408.

The previous prime is 12305261. The next prime is 12305273. The reversal of 12305263 is 36250321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36250321 = 5147 ⋅7043.

It is a cyclic number.

It is not a de Polignac number, because 12305263 - 2¹ = 12305261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305261) 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, 361903 + ... + 361936.

It is an arithmetic number, because the mean of its divisors is an integer number (3257280).

Almost surely, 2^12305263 is an apocalyptic number.

12305263 is a deficient number, since it is larger than the sum of its proper divisors (723857).

12305263 is an equidigital number, since it uses as much as digits as its factorization.

12305263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723856.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 12305263 is about 3507.8858305253. The cubic root of 12305263 is about 230.8679429861.

Adding to 12305263 its reverse (36250321), we get a palindrome (48555584).

The spelling of 12305263 in words is "twelve million, three hundred five thousand, two hundred sixty-three".