203871386241 has 32 divisors (see below), whose sum is σ = 305035427840. Its totient is φ = 134563194000.

The previous prime is 203871386233. The next prime is 203871386321. The reversal of 203871386241 is 142683178302.

203871386241 is a `hidden beast` number, since 2 + 0 + 3 + 8 + 7 + 13 + 8 + 624 + 1 = 666.

It is not a de Polignac number, because 203871386241 - 2³ = 203871386233 is a prime.

It is a super-2 number, since 2×203871386241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203871386231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22274016 + ... + 22283166.

It is an arithmetic number, because the mean of its divisors is an integer number (9532357120).

Almost surely, 2^203871386241 is an apocalyptic number.

It is an amenable number.

203871386241 is a deficient number, since it is larger than the sum of its proper divisors (101164041599).

203871386241 is a wasteful number, since it uses less digits than its factorization.

203871386241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17274 (or 17268 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 203871386241 in words is "two hundred three billion, eight hundred seventy-one million, three hundred eighty-six thousand, two hundred forty-one".