203431013134 has 16 divisors (see below), whose sum is σ = 319331403648. Its totient is φ = 97012702072.

The previous prime is 203431013131. The next prime is 203431013171. The reversal of 203431013134 is 431310134302.

It is a junction number, because it is equal to n+sod(n) for n = 203431013099 and 203431013108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203431013131) 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, 6356392 + ... + 6388315.

It is an arithmetic number, because the mean of its divisors is an integer number (19958212728).

Almost surely, 2^203431013134 is an apocalyptic number.

203431013134 is a deficient number, since it is larger than the sum of its proper divisors (115900390514).

203431013134 is a wasteful number, since it uses less digits than its factorization.

203431013134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12745079.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 203431013134 its reverse (431310134302), we get a palindrome (634741147436).

The spelling of 203431013134 in words is "two hundred three billion, four hundred thirty-one million, thirteen thousand, one hundred thirty-four".