223323131031312 has 320 divisors, whose sum is σ = 675359725322240. Its totient is φ = 62973394790400.

The previous prime is 223323131031257. The next prime is 223323131031313. The reversal of 223323131031312 is 213130131323322.

It is a self number, because there is not a number n which added to its sum of digits gives 223323131031312.

It is not an unprimeable number, because it can be changed into a prime (223323131031313) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 939670737 + ... + 939908367.

It is an arithmetic number, because the mean of its divisors is an integer number (2110499141632).

Almost surely, 2^{223323131031312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223323131031312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337679862661120).

223323131031312 is an abundant number, since it is smaller than the sum of its proper divisors (452036594290928).

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

223323131031312 is a wasteful number, since it uses less digits than its factorization.

223323131031312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240262 (or 240256 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 223323131031312 its reverse (213130131323322), we get a palindrome (436453262354634).

The spelling of 223323131031312 in words is "two hundred twenty-three trillion, three hundred twenty-three billion, one hundred thirty-one million, thirty-one thousand, three hundred twelve".