13124412343321 has 4 divisors (see below), whose sum is σ = 13124461427044. Its totient is φ = 13124363259600.

The previous prime is 13124412343307. The next prime is 13124412343333. The reversal of 13124412343321 is 12334321442131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6794337494025 + 6330074849296 = 2606595^2 + 2515964^2 .

It is a cyclic number.

It is not a de Polignac number, because 13124412343321 - 2⁹ = 13124412342809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13124412343621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24138570 + ... + 24676291.

It is an arithmetic number, because the mean of its divisors is an integer number (3281115356761).

Almost surely, 2^{13124412343321} is an apocalyptic number.

It is an amenable number.

13124412343321 is a deficient number, since it is larger than the sum of its proper divisors (49083723).

13124412343321 is an equidigital number, since it uses as much as digits as its factorization.

13124412343321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49083722.

The product of its digits is 41472, while the sum is 34.

Adding to 13124412343321 its reverse (12334321442131), we get a palindrome (25458733785452).

The spelling of 13124412343321 in words is "thirteen trillion, one hundred twenty-four billion, four hundred twelve million, three hundred forty-three thousand, three hundred twenty-one".