4223403132421 has 16 divisors (see below), whose sum is σ = 4653734192640. Its totient is φ = 3800829463920.

The previous prime is 4223403132373. The next prime is 4223403132449. The reversal of 4223403132421 is 1242313043224.

4223403132421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4223403132421 - 2⁷ = 4223403132293 is a prime.

It is a super-2 number, since 2×4223403132421² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223403130421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2532766 + ... + 3855088.

It is an arithmetic number, because the mean of its divisors is an integer number (290858387040).

Almost surely, 2^{4223403132421} is an apocalyptic number.

It is an amenable number.

4223403132421 is a deficient number, since it is larger than the sum of its proper divisors (430331060219).

4223403132421 is a wasteful number, since it uses less digits than its factorization.

4223403132421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325256.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 4223403132421 its reverse (1242313043224), we get a palindrome (5465716175645).

The spelling of 4223403132421 in words is "four trillion, two hundred twenty-three billion, four hundred three million, one hundred thirty-two thousand, four hundred twenty-one".