23041344111221 has 16 divisors (see below), whose sum is σ = 25141603891824. Its totient is φ = 21027850251264.

The previous prime is 23041344111199. The next prime is 23041344111229. The reversal of 23041344111221 is 12211144314032.

It can be written as a sum of positive squares in 8 ways, for example, as 14943164878321 + 8098179232900 = 3865639^2 + 2845730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23041344111221 is a prime.

It is a super-2 number, since 2×23041344111221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23041344111229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62327150 + ... + 62695743.

It is an arithmetic number, because the mean of its divisors is an integer number (1571350243239).

Almost surely, 2^{23041344111221} is an apocalyptic number.

It is an amenable number.

23041344111221 is a deficient number, since it is larger than the sum of its proper divisors (2100259780603).

23041344111221 is a wasteful number, since it uses less digits than its factorization.

23041344111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125023240.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 23041344111221 its reverse (12211144314032), we get a palindrome (35252488425253).

The spelling of 23041344111221 in words is "twenty-three trillion, forty-one billion, three hundred forty-four million, one hundred eleven thousand, two hundred twenty-one".