203144123243 has 8 divisors (see below), whose sum is σ = 210293173200. Its totient is φ = 196004678688.

The previous prime is 203144123201. The next prime is 203144123261. The reversal of 203144123243 is 342321441302.

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 203144123243 - 2¹⁰ = 203144122219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203144123443) 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, 2358296 + ... + 2442917.

It is an arithmetic number, because the mean of its divisors is an integer number (26286646650).

Almost surely, 2^203144123243 is an apocalyptic number.

203144123243 is a deficient number, since it is larger than the sum of its proper divisors (7149049957).

203144123243 is a wasteful number, since it uses less digits than its factorization.

203144123243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4802701.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 203144123243 its reverse (342321441302), we get a palindrome (545465564545).

The spelling of 203144123243 in words is "two hundred three billion, one hundred forty-four million, one hundred twenty-three thousand, two hundred forty-three".