143223102220421 has 4 divisors (see below), whose sum is σ = 146270402267712. Its totient is φ = 140175802173132.

The previous prime is 143223102220409. The next prime is 143223102220423. The reversal of 143223102220421 is 124022201322341.

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 143223102220421 - 2¹⁰ = 143223102219397 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 (143223102220423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523650023575 + ... + 1523650023668.

It is an arithmetic number, because the mean of its divisors is an integer number (36567600566928).

Almost surely, 2^{143223102220421} is an apocalyptic number.

It is an amenable number.

143223102220421 is a deficient number, since it is larger than the sum of its proper divisors (3047300047291).

143223102220421 is an equidigital number, since it uses as much as digits as its factorization.

143223102220421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047300047290.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 143223102220421 its reverse (124022201322341), we get a palindrome (267245303542762).

The spelling of 143223102220421 in words is "one hundred forty-three trillion, two hundred twenty-three billion, one hundred two million, two hundred twenty thousand, four hundred twenty-one".