20203413402243 has 8 divisors (see below), whose sum is σ = 27010104067408. Its totient is φ = 13432832502624.

The previous prime is 20203413402223. The next prime is 20203413402269. The reversal of 20203413402243 is 34220431430202.

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

It is not a de Polignac number, because 20203413402243 - 2¹⁰ = 20203413401219 is a prime.

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 20203413402243.

It is not an unprimeable number, because it can be changed into a prime (20203413402223) 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, 9027440080 + ... + 9027442317.

It is an arithmetic number, because the mean of its divisors is an integer number (3376263008426).

Almost surely, 2^{20203413402243} is an apocalyptic number.

20203413402243 is a deficient number, since it is larger than the sum of its proper divisors (6806690665165).

20203413402243 is a wasteful number, since it uses less digits than its factorization.

20203413402243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18054882773.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 20203413402243 its reverse (34220431430202), we get a palindrome (54423844832445).

The spelling of 20203413402243 in words is "twenty trillion, two hundred three billion, four hundred thirteen million, four hundred two thousand, two hundred forty-three".