20043443323115 has 16 divisors (see below), whose sum is σ = 24382227069408. Its totient is φ = 15814702331136.

The previous prime is 20043443323069. The next prime is 20043443323151. The reversal of 20043443323115 is 51132334434002.

It is a cyclic number.

It is not a de Polignac number, because 20043443323115 - 2²⁰ = 20043442274539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14269772 + ... + 15611318.

It is an arithmetic number, because the mean of its divisors is an integer number (1523889191838).

Almost surely, 2^{20043443323115} is an apocalyptic number.

20043443323115 is a deficient number, since it is larger than the sum of its proper divisors (4338783746293).

20043443323115 is a wasteful number, since it uses less digits than its factorization.

20043443323115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382558.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 20043443323115 its reverse (51132334434002), we get a palindrome (71175777757117).

The spelling of 20043443323115 in words is "twenty trillion, forty-three billion, four hundred forty-three million, three hundred twenty-three thousand, one hundred fifteen".