243320122111 has 4 divisors (see below), whose sum is σ = 265440133224. Its totient is φ = 221200111000.

The previous prime is 243320122109. The next prime is 243320122139. The reversal of 243320122111 is 111221023342.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 243320122111 - 2¹ = 243320122109 is a prime.

It is a super-2 number, since 2×243320122111² (a number of 24 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 (243320122151) 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, 11060005540 + ... + 11060005561.

It is an arithmetic number, because the mean of its divisors is an integer number (66360033306).

Almost surely, 2^243320122111 is an apocalyptic number.

243320122111 is a deficient number, since it is larger than the sum of its proper divisors (22120011113).

243320122111 is a wasteful number, since it uses less digits than its factorization.

243320122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22120011112.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 243320122111 its reverse (111221023342), we get a palindrome (354541145453).

The spelling of 243320122111 in words is "two hundred forty-three billion, three hundred twenty million, one hundred twenty-two thousand, one hundred eleven".