203144313242 has 8 divisors (see below), whose sum is σ = 328156198356. Its totient is φ = 93758913792.

The previous prime is 203144313209. The next prime is 203144313247. The reversal of 203144313242 is 242313441302.

203144313242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 194014701841 + 9129611401 = 440471^2 + 95549^2 .

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

It is a super-2 number, since 2×203144313242² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203144313247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3906621383 + ... + 3906621434.

Almost surely, 2^203144313242 is an apocalyptic number.

203144313242 is a deficient number, since it is larger than the sum of its proper divisors (125011885114).

203144313242 is a wasteful number, since it uses less digits than its factorization.

203144313242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813242832.

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

Adding to 203144313242 its reverse (242313441302), we get a palindrome (445457754544).

The spelling of 203144313242 in words is "two hundred three billion, one hundred forty-four million, three hundred thirteen thousand, two hundred forty-two".