203212310031 has 20 divisors (see below), whose sum is σ = 303584511384. Its totient is φ = 135465750000.

The previous prime is 203212310027. The next prime is 203212310033. The reversal of 203212310031 is 130013212302.

203212310031 is a `hidden beast` number, since 2 + 0 + 321 + 2 + 310 + 0 + 31 = 666.

203212310031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203212310031 - 2² = 203212310027 is a prime.

It is a super-2 number, since 2×203212310031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203212309986 and 203212310013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203212310033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1256281 + ... + 1408781.

Almost surely, 2^203212310031 is an apocalyptic number.

203212310031 is a deficient number, since it is larger than the sum of its proper divisors (100372201353).

203212310031 is a wasteful number, since it uses less digits than its factorization.

203212310031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168964 (or 168955 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 203212310031 its reverse (130013212302), we get a palindrome (333225522333).

The spelling of 203212310031 in words is "two hundred three billion, two hundred twelve million, three hundred ten thousand, thirty-one".