243420133223 has 12 divisors (see below), whose sum is σ = 246387065808. Its totient is φ = 240486274560.

The previous prime is 243420133217. The next prime is 243420133267. The reversal of 243420133223 is 322331024342.

It is not a de Polignac number, because 243420133223 - 2¹⁴ = 243420116839 is a prime.

It is a super-2 number, since 2×243420133223² (a number of 24 digits) contains 22 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 (243420133123) 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 11 ways as a sum of consecutive naturals, for example, 3940511 + ... + 4001807.

It is an arithmetic number, because the mean of its divisors is an integer number (20532255484).

Almost surely, 2^243420133223 is an apocalyptic number.

243420133223 is a deficient number, since it is larger than the sum of its proper divisors (2966932585).

243420133223 is an equidigital number, since it uses as much as digits as its factorization.

243420133223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61834 (or 61721 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 243420133223 its reverse (322331024342), we get a palindrome (565751157565).

The spelling of 243420133223 in words is "two hundred forty-three billion, four hundred twenty million, one hundred thirty-three thousand, two hundred twenty-three".