13124421001213 has 4 divisors (see below), whose sum is σ = 13127872075488. Its totient is φ = 13120969926940.

The previous prime is 13124421001103. The next prime is 13124421001217. The reversal of 13124421001213 is 31210012442131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13124421001213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13124421001217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1725531433 + ... + 1725539038.

It is an arithmetic number, because the mean of its divisors is an integer number (3281968018872).

Almost surely, 2^{13124421001213} is an apocalyptic number.

It is an amenable number.

13124421001213 is a deficient number, since it is larger than the sum of its proper divisors (3451074275).

13124421001213 is an equidigital number, since it uses as much as digits as its factorization.

13124421001213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451074274.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 13124421001213 its reverse (31210012442131), we get a palindrome (44334433443344).

The spelling of 13124421001213 in words is "thirteen trillion, one hundred twenty-four billion, four hundred twenty-one million, one thousand, two hundred thirteen".