13155321224530 has 64 divisors (see below), whose sum is σ = 24612686396928. Its totient is φ = 5059644728320.

The previous prime is 13155321224519. The next prime is 13155321224531. The reversal of 13155321224530 is 3542212355131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13155321224530.

It is not an unprimeable number, because it can be changed into a prime (13155321224531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5237514 + ... + 7330906.

It is an arithmetic number, because the mean of its divisors is an integer number (384573224952).

Almost surely, 2^{13155321224530} is an apocalyptic number.

13155321224530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13155321224530 is a deficient number, since it is larger than the sum of its proper divisors (11457365172398).

13155321224530 is a wasteful number, since it uses less digits than its factorization.

13155321224530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093691.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 13155321224530 its reverse (3542212355131), we get a palindrome (16697533579661).

The spelling of 13155321224530 in words is "thirteen trillion, one hundred fifty-five billion, three hundred twenty-one million, two hundred twenty-four thousand, five hundred thirty".