1313441324421 has 16 divisors (see below), whose sum is σ = 1849431091200. Its totient is φ = 826839787248.

The previous prime is 1313441324413. The next prime is 1313441324423. The reversal of 1313441324421 is 1244231443131.

It is a happy number.

It is not a de Polignac number, because 1313441324421 - 2³ = 1313441324413 is a prime.

It is a super-2 number, since 2×1313441324421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313441324423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37511541 + ... + 37546538.

It is an arithmetic number, because the mean of its divisors is an integer number (115589443200).

Almost surely, 2^{1313441324421} is an apocalyptic number.

It is an amenable number.

1313441324421 is a deficient number, since it is larger than the sum of its proper divisors (535989766779).

1313441324421 is a wasteful number, since it uses less digits than its factorization.

1313441324421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75058408.

The product of its digits is 27648, while the sum is 33.

Adding to 1313441324421 its reverse (1244231443131), we get a palindrome (2557672767552).

The spelling of 1313441324421 in words is "one trillion, three hundred thirteen billion, four hundred forty-one million, three hundred twenty-four thousand, four hundred twenty-one".