223443311420 has 72 divisors (see below), whose sum is σ = 547916158944. Its totient is φ = 76317757824.

The previous prime is 223443311407. The next prime is 223443311447. The reversal of 223443311420 is 24113344322.

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, 175727 + ... + 691206.

It is an arithmetic number, because the mean of its divisors is an integer number (7609946652).

Almost surely, 2^223443311420 is an apocalyptic number.

223443311420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223443311420 is an abundant number, since it is smaller than the sum of its proper divisors (324472847524).

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

223443311420 is a wasteful number, since it uses less digits than its factorization.

223443311420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867219 (or 867210 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 223443311420 its reverse (24113344322), we get a palindrome (247556655742).

The spelling of 223443311420 in words is "two hundred twenty-three billion, four hundred forty-three million, three hundred eleven thousand, four hundred twenty".