243211104121 has 16 divisors (see below), whose sum is σ = 253484100864. Its totient is φ = 233165156224.

The previous prime is 243211104107. The next prime is 243211104137. The reversal of 243211104121 is 121401112342.

243211104121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 243211104121 - 2⁵ = 243211104089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243211104092 and 243211104101.

It is not an unprimeable number, because it can be changed into a prime (243211104821) 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, 1457826 + ... + 1616068.

It is an arithmetic number, because the mean of its divisors is an integer number (15842756304).

Almost surely, 2^243211104121 is an apocalyptic number.

It is an amenable number.

243211104121 is a deficient number, since it is larger than the sum of its proper divisors (10272996743).

243211104121 is a wasteful number, since it uses less digits than its factorization.

243211104121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158960.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 243211104121 its reverse (121401112342), we get a palindrome (364612216463).

The spelling of 243211104121 in words is "two hundred forty-three billion, two hundred eleven million, one hundred four thousand, one hundred twenty-one".