31324203222 has 32 divisors (see below), whose sum is σ = 67596603648. Its totient is φ = 9619775136.

The previous prime is 31324203221. The next prime is 31324203277. The reversal of 31324203222 is 22230242313.

It is a junction number, because it is equal to n+sod(n) for n = 31324203192 and 31324203201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31324203221) 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 in 15 ways as a sum of consecutive naturals, for example, 343138 + ... + 424725.

It is an arithmetic number, because the mean of its divisors is an integer number (2112393864).

Almost surely, 2^31324203222 is an apocalyptic number.

31324203222 is an abundant number, since it is smaller than the sum of its proper divisors (36272400426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31324203222 is a wasteful number, since it uses less digits than its factorization.

31324203222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768404.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31324203222 its reverse (22230242313), we get a palindrome (53554445535).

The spelling of 31324203222 in words is "thirty-one billion, three hundred twenty-four million, two hundred three thousand, two hundred twenty-two".