13321421240242 has 8 divisors (see below), whose sum is σ = 19982157817500. Its totient is φ = 6660701967744.

The previous prime is 13321421240207. The next prime is 13321421240273. The reversal of 13321421240242 is 24204212412331.

13321421240242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7139589344001 + 6181831896241 = 2672001^2 + 2486329^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2190867 + ... + 5607382.

Almost surely, 2^{13321421240242} is an apocalyptic number.

13321421240242 is a deficient number, since it is larger than the sum of its proper divisors (6660736577258).

13321421240242 is an equidigital number, since it uses as much as digits as its factorization.

13321421240242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8652380.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 13321421240242 its reverse (24204212412331), we get a palindrome (37525633652573).

The spelling of 13321421240242 in words is "thirteen trillion, three hundred twenty-one billion, four hundred twenty-one million, two hundred forty thousand, two hundred forty-two".