203222420431 has 2 divisors, whose sum is σ = 203222420432. Its totient is φ = 203222420430.

The previous prime is 203222420417. The next prime is 203222420539. The reversal of 203222420431 is 134024222302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203222420431 - 2¹⁵ = 203222387663 is a prime.

It is a super-2 number, since 2×203222420431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203222420396 and 203222420405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203222420831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101611210215 + 101611210216.

It is an arithmetic number, because the mean of its divisors is an integer number (101611210216).

Almost surely, 2^203222420431 is an apocalyptic number.

203222420431 is a deficient number, since it is larger than the sum of its proper divisors (1).

203222420431 is an equidigital number, since it uses as much as digits as its factorization.

203222420431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 203222420431 its reverse (134024222302), we get a palindrome (337246642733).

The spelling of 203222420431 in words is "two hundred three billion, two hundred twenty-two million, four hundred twenty thousand, four hundred thirty-one".