4223141043421 has 4 divisors (see below), whose sum is σ = 4230947219644. Its totient is φ = 4215334867200.

The previous prime is 4223141043397. The next prime is 4223141043431. The reversal of 4223141043421 is 1243401413224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1513367436100 + 2709773607321 = 1230190^2 + 1646139^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223141043421 - 2²⁷ = 4223006825693 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 (4223141043431) 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, 3903087300 + ... + 3903088381.

It is an arithmetic number, because the mean of its divisors is an integer number (1057736804911).

Almost surely, 2^{4223141043421} is an apocalyptic number.

It is an amenable number.

4223141043421 is a deficient number, since it is larger than the sum of its proper divisors (7806176223).

4223141043421 is an equidigital number, since it uses as much as digits as its factorization.

4223141043421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7806176222.

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

Adding to 4223141043421 its reverse (1243401413224), we get a palindrome (5466542456645).

The spelling of 4223141043421 in words is "four trillion, two hundred twenty-three billion, one hundred forty-one million, forty-three thousand, four hundred twenty-one".