203431241331 has 12 divisors (see below), whose sum is σ = 294169112952. Its totient is φ = 135471295296.

The previous prime is 203431241327. The next prime is 203431241333. The reversal of 203431241331 is 133142134302.

It is a happy number.

203431241331 is a `hidden beast` number, since 203 + 4 + 3 + 12 + 413 + 31 = 666.

It is not a de Polignac number, because 203431241331 - 2² = 203431241327 is a prime.

It is a super-2 number, since 2×203431241331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203431241295 and 203431241304.

It is not an unprimeable number, because it can be changed into a prime (203431241333) 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 11 ways as a sum of consecutive naturals, for example, 12452406 + ... + 12468731.

It is an arithmetic number, because the mean of its divisors is an integer number (24514092746).

Almost surely, 2^203431241331 is an apocalyptic number.

203431241331 is a deficient number, since it is larger than the sum of its proper divisors (90737871621).

203431241331 is a wasteful number, since it uses less digits than its factorization.

203431241331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24922050 (or 24922047 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 203431241331 its reverse (133142134302), we get a palindrome (336573375633).

The spelling of 203431241331 in words is "two hundred three billion, four hundred thirty-one million, two hundred forty-one thousand, three hundred thirty-one".