13124420521331 has 8 divisors (see below), whose sum is σ = 15077054516064. Its totient is φ = 11191215720960.

The previous prime is 13124420521327. The next prime is 13124420521361. The reversal of 13124420521331 is 13312502442131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13124420521331 - 2² = 13124420521327 is a prime.

It is a super-3 number, since 3×13124420521331³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13124420521361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4857297140 + ... + 4857299841.

It is an arithmetic number, because the mean of its divisors is an integer number (1884631814508).

Almost surely, 2^{13124420521331} is an apocalyptic number.

13124420521331 is a deficient number, since it is larger than the sum of its proper divisors (1952633994733).

13124420521331 is an equidigital number, since it uses as much as digits as its factorization.

13124420521331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9714597181.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 13124420521331 its reverse (13312502442131), we get a palindrome (26436922963462).

The spelling of 13124420521331 in words is "thirteen trillion, one hundred twenty-four billion, four hundred twenty million, five hundred twenty-one thousand, three hundred thirty-one".