203306012444 has 48 divisors (see below), whose sum is σ = 363012233472. Its totient is φ = 99607200000.

The previous prime is 203306012411. The next prime is 203306012461. The reversal of 203306012444 is 444210603302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52791119 + ... + 52794969.

It is an arithmetic number, because the mean of its divisors is an integer number (7562754864).

Almost surely, 2^203306012444 is an apocalyptic number.

It is an amenable number.

203306012444 is a deficient number, since it is larger than the sum of its proper divisors (159706221028).

203306012444 is a wasteful number, since it uses less digits than its factorization.

203306012444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018 (or 5016 counting only the distinct ones).

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

Adding to 203306012444 its reverse (444210603302), we get a palindrome (647516615746).

The spelling of 203306012444 in words is "two hundred three billion, three hundred six million, twelve thousand, four hundred forty-four".