203431034313 has 48 divisors (see below), whose sum is σ = 323675928576. Its totient is φ = 122337198720.

The previous prime is 203431034249. The next prime is 203431034321. The reversal of 203431034313 is 313430134302.

203431034313 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 310 + 34 + 313 = 666.

It is not a de Polignac number, because 203431034313 - 2⁶ = 203431034249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203431034333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3606856 + ... + 3662822.

It is an arithmetic number, because the mean of its divisors is an integer number (6743248512).

Almost surely, 2^203431034313 is an apocalyptic number.

It is an amenable number.

203431034313 is a deficient number, since it is larger than the sum of its proper divisors (120244894263).

203431034313 is a wasteful number, since it uses less digits than its factorization.

203431034313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56694 (or 56691 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 203431034313 its reverse (313430134302), we get a palindrome (516861168615).

The spelling of 203431034313 in words is "two hundred three billion, four hundred thirty-one million, thirty-four thousand, three hundred thirteen".