31223321014204 has 144 divisors (see below), whose sum is σ = 65745843609600. Its totient is φ = 12906633484800.

The previous prime is 31223321014189. The next prime is 31223321014247. The reversal of 31223321014204 is 40241012332213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 164934397 + ... + 165123595.

It is an arithmetic number, because the mean of its divisors is an integer number (456568358400).

Almost surely, 2^{31223321014204} is an apocalyptic number.

31223321014204 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31223321014204 is an abundant number, since it is smaller than the sum of its proper divisors (34522522595396).

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

31223321014204 is a wasteful number, since it uses less digits than its factorization.

31223321014204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189920 (or 189907 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31223321014204 its reverse (40241012332213), we get a palindrome (71464333346417).

The spelling of 31223321014204 in words is "thirty-one trillion, two hundred twenty-three billion, three hundred twenty-one million, fourteen thousand, two hundred four".