203442143246 has 8 divisors (see below), whose sum is σ = 308184633144. Its totient is φ = 100713932200.

The previous prime is 203442143207. The next prime is 203442143263. The reversal of 203442143246 is 642341244302.

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

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 3 ways as a sum of consecutive naturals, for example, 503569460 + ... + 503569863.

It is an arithmetic number, because the mean of its divisors is an integer number (38523079143).

Almost surely, 2^203442143246 is an apocalyptic number.

203442143246 is a deficient number, since it is larger than the sum of its proper divisors (104742489898).

203442143246 is a wasteful number, since it uses less digits than its factorization.

203442143246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007139426.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 203442143246 its reverse (642341244302), we get a palindrome (845783387548).

The spelling of 203442143246 in words is "two hundred three billion, four hundred forty-two million, one hundred forty-three thousand, two hundred forty-six".