20444122313443 has 4 divisors (see below), whose sum is σ = 20444627359048. Its totient is φ = 20443617267840.

The previous prime is 20444122313441. The next prime is 20444122313449. The reversal of 20444122313443 is 34431322144402.

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

It is a cyclic number.

It is not a de Polignac number, because 20444122313443 - 2¹ = 20444122313441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20444122313441) 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, 252462078 + ... + 252543043.

It is an arithmetic number, because the mean of its divisors is an integer number (5111156839762).

Almost surely, 2^{20444122313443} is an apocalyptic number.

20444122313443 is a deficient number, since it is larger than the sum of its proper divisors (505045605).

20444122313443 is an equidigital number, since it uses as much as digits as its factorization.

20444122313443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505045604.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 20444122313443 its reverse (34431322144402), we get a palindrome (54875444457845).

The spelling of 20444122313443 in words is "twenty trillion, four hundred forty-four billion, one hundred twenty-two million, three hundred thirteen thousand, four hundred forty-three".