243003344420111 has 16 divisors (see below), whose sum is σ = 274236401031840. Its totient is φ = 213293964602880.

The previous prime is 243003344420077. The next prime is 243003344420117. The reversal of 243003344420111 is 111024443300342.

It is a cyclic number.

It is not a de Polignac number, because 243003344420111 - 2¹⁸ = 243003344157967 is a prime.

It is a super-2 number, since 2×243003344420111² (a number of 30 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 (243003344420117) 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, 211490915 + ... + 212636811.

It is an arithmetic number, because the mean of its divisors is an integer number (17139775064490).

Almost surely, 2^{243003344420111} is an apocalyptic number.

243003344420111 is a deficient number, since it is larger than the sum of its proper divisors (31233056611729).

243003344420111 is a wasteful number, since it uses less digits than its factorization.

243003344420111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810714.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 243003344420111 its reverse (111024443300342), we get a palindrome (354027787720453).

The spelling of 243003344420111 in words is "two hundred forty-three trillion, three billion, three hundred forty-four million, four hundred twenty thousand, one hundred eleven".