243110420421 has 16 divisors (see below), whose sum is σ = 353666247168. Its totient is φ = 147318361200.

The previous prime is 243110420393. The next prime is 243110420431. The reversal of 243110420421 is 124024011342.

243110420421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243110420421 - 2¹⁷ = 243110289349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243110420391 and 243110420400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243110420431) 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 15 ways as a sum of consecutive naturals, for example, 298795 + ... + 758616.

It is an arithmetic number, because the mean of its divisors is an integer number (22104140448).

Almost surely, 2^243110420421 is an apocalyptic number.

It is an amenable number.

243110420421 is a deficient number, since it is larger than the sum of its proper divisors (110555826747).

243110420421 is a wasteful number, since it uses less digits than its factorization.

243110420421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064392.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 243110420421 its reverse (124024011342), we get a palindrome (367134431763).

The spelling of 243110420421 in words is "two hundred forty-three billion, one hundred ten million, four hundred twenty thousand, four hundred twenty-one".