20203122243 has 8 divisors (see below), whose sum is σ = 26963883856. Its totient is φ = 13455554400.

The previous prime is 20203122241. The next prime is 20203122253. The reversal of 20203122243 is 34222130202.

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

It is not a de Polignac number, because 20203122243 - 2¹ = 20203122241 is a prime.

It is a super-2 number, since 2×20203122243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20203122241) 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, 3294868 + ... + 3300993.

It is an arithmetic number, because the mean of its divisors is an integer number (3370485482).

Almost surely, 2^20203122243 is an apocalyptic number.

20203122243 is a deficient number, since it is larger than the sum of its proper divisors (6760761613).

20203122243 is a wasteful number, since it uses less digits than its factorization.

20203122243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6596885.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20203122243 its reverse (34222130202), we get a palindrome (54425252445).

The spelling of 20203122243 in words is "twenty billion, two hundred three million, one hundred twenty-two thousand, two hundred forty-three".