223444432312 has 128 divisors (see below), whose sum is σ = 457628875200. Its totient is φ = 101886976000.

The previous prime is 223444432297. The next prime is 223444432313. The reversal of 223444432312 is 213234444322.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223444432313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237453762 + ... + 237454702.

Almost surely, 2^223444432312 is an apocalyptic number.

It is an amenable number.

223444432312 is an abundant number, since it is smaller than the sum of its proper divisors (234184442888).

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

223444432312 is a wasteful number, since it uses less digits than its factorization.

223444432312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417 (or 1413 counting only the distinct ones).

The product of its digits is 110592, while the sum is 34.

Adding to 223444432312 its reverse (213234444322), we get a palindrome (436678876634).

The spelling of 223444432312 in words is "two hundred twenty-three billion, four hundred forty-four million, four hundred thirty-two thousand, three hundred twelve".