13231224053520 has 120 divisors (see below), whose sum is σ = 45084575944128. Its totient is φ = 3207569460480.

The previous prime is 13231224053519. The next prime is 13231224053521. The reversal of 13231224053520 is 2535042213231.

It is an interprime number because it is at equal distance from previous prime (13231224053519) and next prime (13231224053521).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (13231224053521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227781292 + ... + 227839371.

Almost surely, 2^{13231224053520} is an apocalyptic number.

13231224053520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13231224053520 is an abundant number, since it is smaller than the sum of its proper divisors (31853351890608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13231224053520 is a wasteful number, since it uses less digits than its factorization.

13231224053520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455620701 (or 455620684 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 13231224053520 its reverse (2535042213231), we get a palindrome (15766266266751).

The spelling of 13231224053520 in words is "thirteen trillion, two hundred thirty-one billion, two hundred twenty-four million, fifty-three thousand, five hundred twenty".