13280123 has 2 divisors, whose sum is σ = 13280124. Its totient is φ = 13280122.

The previous prime is 13280119. The next prime is 13280143. The reversal of 13280123 is 32108231.

It is an a-pointer prime, because the next prime (13280143) can be obtained adding 13280123 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13280123 - 2² = 13280119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13280095 and 13280104.

It is not a weakly prime, because it can be changed into another prime (13280143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6640061 + 6640062.

It is an arithmetic number, because the mean of its divisors is an integer number (6640062).

Almost surely, 2^13280123 is an apocalyptic number.

13280123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13280123 is an equidigital number, since it uses as much as digits as its factorization.

13280123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 13280123 is about 3644.1903078736. The cubic root of 13280123 is about 236.8103606204.

Adding to 13280123 its reverse (32108231), we get a palindrome (45388354).

The spelling of 13280123 in words is "thirteen million, two hundred eighty thousand, one hundred twenty-three".