13018823 has 2 divisors, whose sum is σ = 13018824. Its totient is φ = 13018822.

The previous prime is 13018807. The next prime is 13018847. The reversal of 13018823 is 32881031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13018823 - 2⁴ = 13018807 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13018792 and 13018801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13018123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6509411 + 6509412.

It is an arithmetic number, because the mean of its divisors is an integer number (6509412).

Almost surely, 2^13018823 is an apocalyptic number.

13018823 is a deficient number, since it is larger than the sum of its proper divisors (1).

13018823 is an equidigital number, since it uses as much as digits as its factorization.

13018823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 13018823 is about 3608.1606117245. The cubic root of 13018823 is about 235.2468991021.

Adding to 13018823 its reverse (32881031), we get a palindrome (45899854).

The spelling of 13018823 in words is "thirteen million, eighteen thousand, eight hundred twenty-three".