203864751105 has 16 divisors (see below), whose sum is σ = 329546321664. Its totient is φ = 107606960640.

The previous prime is 203864751037. The next prime is 203864751121. The reversal of 203864751105 is 501157468302.

It is a happy number.

203864751105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203864751105 - 2¹⁰ = 203864750081 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70055161 + ... + 70058070.

It is an arithmetic number, because the mean of its divisors is an integer number (20596645104).

Almost surely, 2^203864751105 is an apocalyptic number.

It is an amenable number.

203864751105 is a deficient number, since it is larger than the sum of its proper divisors (125681570559).

203864751105 is a wasteful number, since it uses less digits than its factorization.

203864751105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140113336.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 203864751105 in words is "two hundred three billion, eight hundred sixty-four million, seven hundred fifty-one thousand, one hundred five".