223240320243 has 16 divisors (see below), whose sum is σ = 341394995200. Its totient is φ = 144026012520.

The previous prime is 223240320229. The next prime is 223240320257. The reversal of 223240320243 is 342023042322.

It is a happy number.

223240320243 is a `hidden beast` number, since 2 + 232 + 403 + 2 + 0 + 24 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (223240320229) and next prime (223240320257).

It is not a de Polignac number, because 223240320243 - 2¹³ = 223240312051 is a prime.

It is a super-3 number, since 3×223240320243³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223240320223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133356583 + ... + 133358256.

It is an arithmetic number, because the mean of its divisors is an integer number (21337187200).

Almost surely, 2^223240320243 is an apocalyptic number.

223240320243 is a deficient number, since it is larger than the sum of its proper divisors (118154674957).

223240320243 is a wasteful number, since it uses less digits than its factorization.

223240320243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266714879 (or 266714873 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 223240320243 its reverse (342023042322), we get a palindrome (565263362565).

The spelling of 223240320243 in words is "two hundred twenty-three billion, two hundred forty million, three hundred twenty thousand, two hundred forty-three".