13043522221811 has 8 divisors (see below), whose sum is σ = 13809387691920. Its totient is φ = 12285593181792.

The previous prime is 13043522221801. The next prime is 13043522221841. The reversal of 13043522221811 is 11812222534031.

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 13043522221811 - 2³⁴ = 13026342352627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13043522221801) 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, 1984104140 + ... + 1984110713.

It is an arithmetic number, because the mean of its divisors is an integer number (1726173461490).

Almost surely, 2^{13043522221811} is an apocalyptic number.

13043522221811 is a deficient number, since it is larger than the sum of its proper divisors (765865470109).

13043522221811 is a wasteful number, since it uses less digits than its factorization.

13043522221811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968215045.

The product of its (nonzero) digits is 23040, while the sum is 35.

Adding to 13043522221811 its reverse (11812222534031), we get a palindrome (24855744755842).

The spelling of 13043522221811 in words is "thirteen trillion, forty-three billion, five hundred twenty-two million, two hundred twenty-one thousand, eight hundred eleven".