1313441221242 has 16 divisors (see below), whose sum is σ = 2741094722880. Its totient is φ = 418778360352.

The previous prime is 1313441221231. The next prime is 1313441221247. The reversal of 1313441221242 is 2421221443131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1313441221247) 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, 4758844867 + ... + 4758845142.

It is an arithmetic number, because the mean of its divisors is an integer number (171318420180).

Almost surely, 2^{1313441221242} is an apocalyptic number.

1313441221242 is an abundant number, since it is smaller than the sum of its proper divisors (1427653501638).

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

1313441221242 is a wasteful number, since it uses less digits than its factorization.

1313441221242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9517690037.

The product of its digits is 9216, while the sum is 30.

Adding to 1313441221242 its reverse (2421221443131), we get a palindrome (3734662664373).

The spelling of 1313441221242 in words is "one trillion, three hundred thirteen billion, four hundred forty-one million, two hundred twenty-one thousand, two hundred forty-two".