13111023322021 has 8 divisors (see below), whose sum is σ = 13186967753304. Its totient is φ = 13035080709120.

The previous prime is 13111023322013. The next prime is 13111023322073. The reversal of 13111023322021 is 12022332011131.

It can be written as a sum of positive squares in 4 ways, for example, as 10683157620100 + 2427865701921 = 3268510^2 + 1558161^2 .

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 13111023322021 - 2³ = 13111023322013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13111023321983 and 13111023322001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111023322421) 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, 15656181 + ... + 16472341.

It is an arithmetic number, because the mean of its divisors is an integer number (1648370969163).

Almost surely, 2^{13111023322021} is an apocalyptic number.

It is an amenable number.

13111023322021 is a deficient number, since it is larger than the sum of its proper divisors (75944431283).

13111023322021 is an equidigital number, since it uses as much as digits as its factorization.

13111023322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909191.

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

Adding to 13111023322021 its reverse (12022332011131), we get a palindrome (25133355333152).

The spelling of 13111023322021 in words is "thirteen trillion, one hundred eleven billion, twenty-three million, three hundred twenty-two thousand, twenty-one".