203404111012 has 12 divisors (see below), whose sum is σ = 355976730396. Its totient is φ = 101696473760.

The previous prime is 203404110979. The next prime is 203404111061. The reversal of 203404111012 is 210111404302.

It can be written as a sum of positive squares in 2 ways, for example, as 46093513636 + 157310597376 = 214694^2 + 396624^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312903 + ... + 1459630.

It is an arithmetic number, because the mean of its divisors is an integer number (29664727533).

Almost surely, 2^203404111012 is an apocalyptic number.

It is an amenable number.

203404111012 is a deficient number, since it is larger than the sum of its proper divisors (152572619384).

203404111012 is a wasteful number, since it uses less digits than its factorization.

203404111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790878 (or 2790876 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 203404111012 its reverse (210111404302), we get a palindrome (413515515314).

The spelling of 203404111012 in words is "two hundred three billion, four hundred four million, one hundred eleven thousand, twelve".