203131430214113 has 4 divisors (see below), whose sum is σ = 206461453660308. Its totient is φ = 199801406767920.

The previous prime is 203131430214079. The next prime is 203131430214143. The reversal of 203131430214113 is 311412034131302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33822226913344 + 169309203300769 = 5815688^2 + 13011887^2 .

It is a cyclic number.

It is not a de Polignac number, because 203131430214113 - 2³⁰ = 203130356472289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203131430214143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1665011723006 + ... + 1665011723127.

It is an arithmetic number, because the mean of its divisors is an integer number (51615363415077).

Almost surely, 2^{203131430214113} is an apocalyptic number.

It is an amenable number.

203131430214113 is a deficient number, since it is larger than the sum of its proper divisors (3330023446195).

203131430214113 is an equidigital number, since it uses as much as digits as its factorization.

203131430214113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330023446194.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 203131430214113 its reverse (311412034131302), we get a palindrome (514543464345415).

The spelling of 203131430214113 in words is "two hundred three trillion, one hundred thirty-one billion, four hundred thirty million, two hundred fourteen thousand, one hundred thirteen".