203244451205 has 16 divisors (see below), whose sum is σ = 244245973104. Its totient is φ = 162360629760.

The previous prime is 203244451183. The next prime is 203244451211. The reversal of 203244451205 is 502154442302.

It can be written as a sum of positive squares in 8 ways, for example, as 8190612004 + 195053839201 = 90502^2 + 441649^2 .

It is not a de Polignac number, because 203244451205 - 2³⁰ = 202170709381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12637049 + ... + 12653121.

It is an arithmetic number, because the mean of its divisors is an integer number (15265373319).

Almost surely, 2^203244451205 is an apocalyptic number.

It is an amenable number.

203244451205 is a deficient number, since it is larger than the sum of its proper divisors (41001521899).

203244451205 is a wasteful number, since it uses less digits than its factorization.

203244451205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19576.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 203244451205 its reverse (502154442302), we get a palindrome (705398893507).

The spelling of 203244451205 in words is "two hundred three billion, two hundred forty-four million, four hundred fifty-one thousand, two hundred five".