203202403442 has 16 divisors (see below), whose sum is σ = 306572851032. Its totient is φ = 101012106240.

The previous prime is 203202403433. The next prime is 203202403451. The reversal of 203202403442 is 244304202302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (203202403433) and next prime (203202403451).

It can be written as a sum of positive squares in 4 ways, for example, as 179258245321 + 23944158121 = 423389^2 + 154739^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463328 + ... + 788084.

Almost surely, 2^203202403442 is an apocalyptic number.

203202403442 is a deficient number, since it is larger than the sum of its proper divisors (103370447590).

203202403442 is a wasteful number, since it uses less digits than its factorization.

203202403442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326573.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 203202403442 its reverse (244304202302), we get a palindrome (447506605744).

The spelling of 203202403442 in words is "two hundred three billion, two hundred two million, four hundred three thousand, four hundred forty-two".