203130645361 has 8 divisors (see below), whose sum is σ = 232746096960. Its totient is φ = 173664390768.

The previous prime is 203130645349. The next prime is 203130645397. The reversal of 203130645361 is 163546031302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203130645361 - 2³¹ = 200983161713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203130645461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37296331 + ... + 37301776.

It is an arithmetic number, because the mean of its divisors is an integer number (29093262120).

Almost surely, 2^203130645361 is an apocalyptic number.

It is an amenable number.

203130645361 is a deficient number, since it is larger than the sum of its proper divisors (29615451599).

203130645361 is an equidigital number, since it uses as much as digits as its factorization.

203130645361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74598503.

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 203130645361 its reverse (163546031302), we get a palindrome (366676676663).

The spelling of 203130645361 in words is "two hundred three billion, one hundred thirty million, six hundred forty-five thousand, three hundred sixty-one".