203404444312 has 32 divisors (see below), whose sum is σ = 388615255200. Its totient is φ = 99774065664.

The previous prime is 203404444303. The next prime is 203404444337. The reversal of 203404444312 is 213444404302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7805128 + ... + 7831144.

It is an arithmetic number, because the mean of its divisors is an integer number (12144226725).

Almost surely, 2^203404444312 is an apocalyptic number.

It is an amenable number.

203404444312 is a deficient number, since it is larger than the sum of its proper divisors (185210810888).

203404444312 is a wasteful number, since it uses less digits than its factorization.

203404444312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44515 (or 44511 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 203404444312 its reverse (213444404302), we get a palindrome (416848848614).

The spelling of 203404444312 in words is "two hundred three billion, four hundred four million, four hundred forty-four thousand, three hundred twelve".