243121241411 has 4 divisors (see below), whose sum is σ = 253691730192. Its totient is φ = 232550752632.

The previous prime is 243121241401. The next prime is 243121241477. The reversal of 243121241411 is 114142121342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114142121342 = 2 ⋅57071060671.

It is a cyclic number.

It is not a de Polignac number, because 243121241411 - 2¹⁸ = 243120979267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243121241401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5285244356 + ... + 5285244401.

It is an arithmetic number, because the mean of its divisors is an integer number (63422932548).

Almost surely, 2^243121241411 is an apocalyptic number.

243121241411 is a deficient number, since it is larger than the sum of its proper divisors (10570488781).

243121241411 is a wasteful number, since it uses less digits than its factorization.

243121241411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10570488780.

The product of its digits is 1536, while the sum is 26.

Adding to 243121241411 its reverse (114142121342), we get a palindrome (357263362753).

The spelling of 243121241411 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-one thousand, four hundred eleven".