13013232112021 has 8 divisors (see below), whose sum is σ = 13133734831800. Its totient is φ = 12892749670080.

The previous prime is 13013232112003. The next prime is 13013232112031. The reversal of 13013232112021 is 12021123231031.

It can be written as a sum of positive squares in 4 ways, for example, as 790943422500 + 12222288689521 = 889350^2 + 3496039^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13013232112021 - 2⁵ = 13013232111989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13013232111983 and 13013232112001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013232112031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3778510 + ... + 6348511.

It is an arithmetic number, because the mean of its divisors is an integer number (1641716853975).

Almost surely, 2^{13013232112021} is an apocalyptic number.

It is an amenable number.

13013232112021 is a deficient number, since it is larger than the sum of its proper divisors (120502719779).

13013232112021 is a wasteful number, since it uses less digits than its factorization.

13013232112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10138919.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13013232112021 its reverse (12021123231031), we get a palindrome (25034355343052).

The spelling of 13013232112021 in words is "thirteen trillion, thirteen billion, two hundred thirty-two million, one hundred twelve thousand, twenty-one".