203143610065361 has 32 divisors (see below), whose sum is σ = 244616196464640. Its totient is φ = 164931493757184.

The previous prime is 203143610065343. The next prime is 203143610065367. The reversal of 203143610065361 is 163560016341302.

It is a de Polignac number, because none of the positive numbers 2^k-203143610065361 is a prime.

It is a super-3 number, since 3×203143610065361³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (203143610065367) 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, 815244956 + ... + 815494098.

It is an arithmetic number, because the mean of its divisors is an integer number (7644256139520).

Almost surely, 2^{203143610065361} is an apocalyptic number.

It is an amenable number.

203143610065361 is a deficient number, since it is larger than the sum of its proper divisors (41472586399279).

203143610065361 is a wasteful number, since it uses less digits than its factorization.

203143610065361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298445.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 203143610065361 in words is "two hundred three trillion, one hundred forty-three billion, six hundred ten million, sixty-five thousand, three hundred sixty-one".