223240421143 has 16 divisors (see below), whose sum is σ = 242444084256. Its totient is φ = 204734638080.

The previous prime is 223240421111. The next prime is 223240421197. The reversal of 223240421143 is 341124042322.

It is a cyclic number.

It is not a de Polignac number, because 223240421143 - 2⁵ = 223240421111 is a prime.

It is a super-3 number, since 3×223240421143³ (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 (223240421543) 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, 54946 + ... + 670447.

It is an arithmetic number, because the mean of its divisors is an integer number (15152755266).

Almost surely, 2^223240421143 is an apocalyptic number.

223240421143 is a deficient number, since it is larger than the sum of its proper divisors (19203663113).

223240421143 is a wasteful number, since it uses less digits than its factorization.

223240421143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725874.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 223240421143 its reverse (341124042322), we get a palindrome (564364463465).

The spelling of 223240421143 in words is "two hundred twenty-three billion, two hundred forty million, four hundred twenty-one thousand, one hundred forty-three".