223631302312340 has 72 divisors (see below), whose sum is σ = 508583362775040. Its totient is φ = 82562834949504.

The previous prime is 223631302312291. The next prime is 223631302312373. The reversal of 223631302312340 is 43213203136322.

It is a self number, because there is not a number n which added to its sum of digits gives 223631302312340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28549037 + ... + 35529003.

It is an arithmetic number, because the mean of its divisors is an integer number (7063657816320).

Almost surely, 2^{223631302312340} is an apocalyptic number.

223631302312340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223631302312340 is an abundant number, since it is smaller than the sum of its proper divisors (284952060462700).

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

223631302312340 is a wasteful number, since it uses less digits than its factorization.

223631302312340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6989481 (or 6989466 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 35.

Adding to 223631302312340 its reverse (43213203136322), we get a palindrome (266844505448662).

The spelling of 223631302312340 in words is "two hundred twenty-three trillion, six hundred thirty-one billion, three hundred two million, three hundred twelve thousand, three hundred forty".