20113213311321 has 8 divisors (see below), whose sum is σ = 28880511421440. Its totient is φ = 12377362037712.

The previous prime is 20113213311307. The next prime is 20113213311341. The reversal of 20113213311321 is 12311331231102.

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

It is not a de Polignac number, because 20113213311321 - 2²⁵ = 20113179756889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20113213311291 and 20113213311300.

It is not an unprimeable number, because it can be changed into a prime (20113213311341) 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, 257861709081 + ... + 257861709158.

It is an arithmetic number, because the mean of its divisors is an integer number (3610063927680).

Almost surely, 2^{20113213311321} is an apocalyptic number.

It is an amenable number.

20113213311321 is a deficient number, since it is larger than the sum of its proper divisors (8767298110119).

20113213311321 is a wasteful number, since it uses less digits than its factorization.

20113213311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515723418255.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 20113213311321 its reverse (12311331231102), we get a palindrome (32424544542423).

The spelling of 20113213311321 in words is "twenty trillion, one hundred thirteen billion, two hundred thirteen million, three hundred eleven thousand, three hundred twenty-one".