203212221031 has 2 divisors, whose sum is σ = 203212221032. Its totient is φ = 203212221030.

The previous prime is 203212221029. The next prime is 203212221059. The reversal of 203212221031 is 130122212302.

203212221031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203212221031 - 2¹ = 203212221029 is a prime.

It is a super-2 number, since 2×203212221031² (a number of 23 digits) contains 22 as substring.

Together with 203212221029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203212221001) 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 as a sum of consecutive naturals, namely, 101606110515 + 101606110516.

It is an arithmetic number, because the mean of its divisors is an integer number (101606110516).

Almost surely, 2^203212221031 is an apocalyptic number.

203212221031 is a deficient number, since it is larger than the sum of its proper divisors (1).

203212221031 is an equidigital number, since it uses as much as digits as its factorization.

203212221031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 203212221031 its reverse (130122212302), we get a palindrome (333334433333).

The spelling of 203212221031 in words is "two hundred three billion, two hundred twelve million, two hundred twenty-one thousand, thirty-one".