203112003031 has 12 divisors (see below), whose sum is σ = 238612490280. Its totient is φ = 172372275600.

The previous prime is 203112003023. The next prime is 203112003043. The reversal of 203112003031 is 130300211302.

It is not a de Polignac number, because 203112003031 - 2³ = 203112003023 is a prime.

It is a super-2 number, since 2×203112003031² (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 = 203112002996 and 203112003014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203112003091) 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, 20515561 + ... + 20525458.

It is an arithmetic number, because the mean of its divisors is an integer number (19884374190).

Almost surely, 2^203112003031 is an apocalyptic number.

203112003031 is a deficient number, since it is larger than the sum of its proper divisors (35500487249).

203112003031 is a wasteful number, since it uses less digits than its factorization.

203112003031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41041134 (or 41041127 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 203112003031 its reverse (130300211302), we get a palindrome (333412214333).

The spelling of 203112003031 in words is "two hundred three billion, one hundred twelve million, three thousand, thirty-one".