223142230421 has 4 divisors (see below), whose sum is σ = 243427887744. Its totient is φ = 202856573100.

The previous prime is 223142230403. The next prime is 223142230447. The reversal of 223142230421 is 124032241322.

223142230421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 223142230421 - 2¹⁴ = 223142214037 is a prime.

It is a super-3 number, since 3×223142230421³ (a number of 35 digits) contains 333 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 (223142230481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10142828645 + ... + 10142828666.

It is an arithmetic number, because the mean of its divisors is an integer number (60856971936).

Almost surely, 2^223142230421 is an apocalyptic number.

It is an amenable number.

223142230421 is a deficient number, since it is larger than the sum of its proper divisors (20285657323).

223142230421 is a wasteful number, since it uses less digits than its factorization.

223142230421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20285657322.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 223142230421 its reverse (124032241322), we get a palindrome (347174471743).

The spelling of 223142230421 in words is "two hundred twenty-three billion, one hundred forty-two million, two hundred thirty thousand, four hundred twenty-one".