20364342053243 has 8 divisors (see below), whose sum is σ = 20516302200240. Its totient is φ = 20212459822080.

The previous prime is 20364342053233. The next prime is 20364342053249. The reversal of 20364342053243 is 34235024346302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20364342053243 - 2⁴ = 20364342053227 is a prime.

It is a super-2 number, since 2×20364342053243² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20364342053243.

It is not an unprimeable number, because it can be changed into a prime (20364342053249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18954230 + ... + 19999787.

It is an arithmetic number, because the mean of its divisors is an integer number (2564537775030).

Almost surely, 2^{20364342053243} is an apocalyptic number.

20364342053243 is a deficient number, since it is larger than the sum of its proper divisors (151960146997).

20364342053243 is a wasteful number, since it uses less digits than its factorization.

20364342053243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38957917.

The product of its (nonzero) digits is 1244160, while the sum is 41.

Adding to 20364342053243 its reverse (34235024346302), we get a palindrome (54599366399545).

The spelling of 20364342053243 in words is "twenty trillion, three hundred sixty-four billion, three hundred forty-two million, fifty-three thousand, two hundred forty-three".