243035011121 has 4 divisors (see below), whose sum is σ = 277754298432. Its totient is φ = 208315723812.

The previous prime is 243035011103. The next prime is 243035011157. The reversal of 243035011121 is 121110530342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121110530342 = 2 ⋅60555265171.

It is a de Polignac number, because none of the positive numbers 2^k-243035011121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243035013121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17359643645 + ... + 17359643658.

It is an arithmetic number, because the mean of its divisors is an integer number (69438574608).

Almost surely, 2^243035011121 is an apocalyptic number.

It is an amenable number.

243035011121 is a deficient number, since it is larger than the sum of its proper divisors (34719287311).

243035011121 is an equidigital number, since it uses as much as digits as its factorization.

243035011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34719287310.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 243035011121 its reverse (121110530342), we get a palindrome (364145541463).

The spelling of 243035011121 in words is "two hundred forty-three billion, thirty-five million, eleven thousand, one hundred twenty-one".