243213122041 has 16 divisors (see below), whose sum is σ = 256327778304. Its totient is φ = 230311494864.

The previous prime is 243213122017. The next prime is 243213122059. The reversal of 243213122041 is 140221312342.

243213122041 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 243213122041 - 2¹³ = 243213113849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243213121997 and 243213122015.

It is not an unprimeable number, because it can be changed into a prime (243213122441) 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, 9100200 + ... + 9126886.

It is an arithmetic number, because the mean of its divisors is an integer number (16020486144).

Almost surely, 2^243213122041 is an apocalyptic number.

It is an amenable number.

243213122041 is a deficient number, since it is larger than the sum of its proper divisors (13114656263).

243213122041 is a wasteful number, since it uses less digits than its factorization.

243213122041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30660.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 243213122041 its reverse (140221312342), we get a palindrome (383434434383).

The spelling of 243213122041 in words is "two hundred forty-three billion, two hundred thirteen million, one hundred twenty-two thousand, forty-one".