203105400104 has 16 divisors (see below), whose sum is σ = 381450019200. Its totient is φ = 101385394992.

The previous prime is 203105399999. The next prime is 203105400107. The reversal of 203105400104 is 401004501302.

It is not an unprimeable number, because it can be changed into a prime (203105400107) by changing a digit.

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, 20907974 + ... + 20917685.

It is an arithmetic number, because the mean of its divisors is an integer number (23840626200).

Almost surely, 2^203105400104 is an apocalyptic number.

It is an amenable number.

203105400104 is a deficient number, since it is larger than the sum of its proper divisors (178344619096).

203105400104 is a wasteful number, since it uses less digits than its factorization.

203105400104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41826272 (or 41826268 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 203105400104 its reverse (401004501302), we get a palindrome (604109901406).

The spelling of 203105400104 in words is "two hundred three billion, one hundred five million, four hundred thousand, one hundred four".