203424321031 has 16 divisors (see below), whose sum is σ = 213403622400. Its totient is φ = 193540216320.

The previous prime is 203424321029. The next prime is 203424321049. The reversal of 203424321031 is 130123424302.

203424321031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 203424321031 - 2¹ = 203424321029 is a prime.

It is a super-2 number, since 2×203424321031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203424320987 and 203424321005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203424321431) 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 15 ways as a sum of consecutive naturals, for example, 21383566 + ... + 21393076.

It is an arithmetic number, because the mean of its divisors is an integer number (13337726400).

Almost surely, 2^203424321031 is an apocalyptic number.

203424321031 is a deficient number, since it is larger than the sum of its proper divisors (9979301369).

203424321031 is a wasteful number, since it uses less digits than its factorization.

203424321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14406.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203424321031 its reverse (130123424302), we get a palindrome (333547745333).

The spelling of 203424321031 in words is "two hundred three billion, four hundred twenty-four million, three hundred twenty-one thousand, thirty-one".