11023122323221 has 4 divisors (see below), whose sum is σ = 11035549744992. Its totient is φ = 11010694901452.

The previous prime is 11023122323123. The next prime is 11023122323237. The reversal of 11023122323221 is 12232322132011.

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 not a de Polignac number, because 11023122323221 - 2³¹ = 11020974839573 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 (11023722323221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6213709555 + ... + 6213711328.

It is an arithmetic number, because the mean of its divisors is an integer number (2758887436248).

Almost surely, 2^{11023122323221} is an apocalyptic number.

It is an amenable number.

11023122323221 is a deficient number, since it is larger than the sum of its proper divisors (12427421771).

11023122323221 is an equidigital number, since it uses as much as digits as its factorization.

11023122323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12427421770.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 11023122323221 its reverse (12232322132011), we get a palindrome (23255444455232).

The spelling of 11023122323221 in words is "eleven trillion, twenty-three billion, one hundred twenty-two million, three hundred twenty-three thousand, two hundred twenty-one".