223012403442 has 128 divisors (see below), whose sum is σ = 546939648000. Its totient is φ = 67042261440.

The previous prime is 223012403431. The next prime is 223012403473. The reversal of 223012403442 is 244304210322.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4956784 + ... + 5001572.

It is an arithmetic number, because the mean of its divisors is an integer number (4272966000).

Almost surely, 2^223012403442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223012403442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273469824000).

223012403442 is an abundant number, since it is smaller than the sum of its proper divisors (323927244558).

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

223012403442 is a wasteful number, since it uses less digits than its factorization.

223012403442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45053 (or 45047 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 223012403442 its reverse (244304210322), we get a palindrome (467316613764).

The spelling of 223012403442 in words is "two hundred twenty-three billion, twelve million, four hundred three thousand, four hundred forty-two".