4223403411421 has 4 divisors (see below), whose sum is σ = 4223604709792. Its totient is φ = 4223202113052.

The previous prime is 4223403411377. The next prime is 4223403411431. The reversal of 4223403411421 is 1241143043224.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4223403411421 - 2⁹ = 4223403410909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223403411431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100617711 + ... + 100659676.

It is an arithmetic number, because the mean of its divisors is an integer number (1055901177448).

Almost surely, 2^{4223403411421} is an apocalyptic number.

It is an amenable number.

4223403411421 is a deficient number, since it is larger than the sum of its proper divisors (201298371).

4223403411421 is a wasteful number, since it uses less digits than its factorization.

4223403411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201298370.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 4223403411421 its reverse (1241143043224), we get a palindrome (5464546454645).

The spelling of 4223403411421 in words is "four trillion, two hundred twenty-three billion, four hundred three million, four hundred eleven thousand, four hundred twenty-one".