23044214140021 has 4 divisors (see below), whose sum is σ = 23057182185772. Its totient is φ = 23031246094272.

The previous prime is 23044214139983. The next prime is 23044214140033. The reversal of 23044214140021 is 12004141244032.

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 12584720775025 + 10459493364996 = 3547495^2 + 3234114^2 .

It is a cyclic number.

It is not a de Polignac number, because 23044214140021 - 2²¹ = 23044212042869 is a prime.

It is a super-2 number, since 2×23044214140021² (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 (23044214140421) 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, 6484020210 + ... + 6484023763.

It is an arithmetic number, because the mean of its divisors is an integer number (5764295546443).

Almost surely, 2^{23044214140021} is an apocalyptic number.

It is an amenable number.

23044214140021 is a deficient number, since it is larger than the sum of its proper divisors (12968045751).

23044214140021 is a wasteful number, since it uses less digits than its factorization.

23044214140021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12968045750.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 23044214140021 its reverse (12004141244032), we get a palindrome (35048355384053).

The spelling of 23044214140021 in words is "twenty-three trillion, forty-four billion, two hundred fourteen million, one hundred forty thousand, twenty-one".