23044344011221 has 4 divisors (see below), whose sum is σ = 24816985858252. Its totient is φ = 21271702164192.

The previous prime is 23044344011203. The next prime is 23044344011233. The reversal of 23044344011221 is 12211044344032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6017282590225 + 17027061420996 = 2453015^2 + 4126386^2 .

It is a cyclic number.

It is not a de Polignac number, because 23044344011221 - 2⁴¹ = 20845320755669 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 (23044344011321) 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, 886320923496 + ... + 886320923521.

It is an arithmetic number, because the mean of its divisors is an integer number (6204246464563).

Almost surely, 2^{23044344011221} is an apocalyptic number.

It is an amenable number.

23044344011221 is a deficient number, since it is larger than the sum of its proper divisors (1772641847031).

23044344011221 is a wasteful number, since it uses less digits than its factorization.

23044344011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772641847030.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 23044344011221 its reverse (12211044344032), we get a palindrome (35255388355253).

The spelling of 23044344011221 in words is "twenty-three trillion, forty-four billion, three hundred forty-four million, eleven thousand, two hundred twenty-one".