1223313443424 has 60 divisors (see below), whose sum is σ = 3597730863804. Its totient is φ = 407771146944.

The previous prime is 1223313443413. The next prime is 1223313443431. The reversal of 1223313443424 is 4243443133221.

1223313443424 is a `hidden beast` number, since 1 + 223 + 3 + 1 + 3 + 4 + 4 + 3 + 424 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 235976082 + ... + 235981265.

Almost surely, 2^{1223313443424} is an apocalyptic number.

It is an amenable number.

1223313443424 is an abundant number, since it is smaller than the sum of its proper divisors (2374417420380).

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

1223313443424 is an equidigital number, since it uses as much as digits as its factorization.

1223313443424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471957369 (or 471957352 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

Adding to 1223313443424 its reverse (4243443133221), we get a palindrome (5466756576645).

The spelling of 1223313443424 in words is "one trillion, two hundred twenty-three billion, three hundred thirteen million, four hundred forty-three thousand, four hundred twenty-four".