13315123 has 2 divisors, whose sum is σ = 13315124. Its totient is φ = 13315122.

The previous prime is 13315121. The next prime is 13315177. The reversal of 13315123 is 32151331.

13315123 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13315123 - 2¹ = 13315121 is a prime.

Together with 13315121, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13315123.

It is not a weakly prime, because it can be changed into another prime (13315121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6657561 + 6657562.

It is an arithmetic number, because the mean of its divisors is an integer number (6657562).

Almost surely, 2^13315123 is an apocalyptic number.

13315123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13315123 is an equidigital number, since it uses as much as digits as its factorization.

13315123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 19.

The square root of 13315123 is about 3648.9893121247. The cubic root of 13315123 is about 237.0182174274.

Adding to 13315123 its reverse (32151331), we get a palindrome (45466454).

The spelling of 13315123 in words is "thirteen million, three hundred fifteen thousand, one hundred twenty-three".