243320100111 has 24 divisors (see below), whose sum is σ = 383433854544. Its totient is φ = 147458895360.

The previous prime is 243320100053. The next prime is 243320100119. The reversal of 243320100111 is 111001023342.

243320100111 is a `hidden beast` number, since 2 + 433 + 20 + 100 + 111 = 666.

It is not a de Polignac number, because 243320100111 - 2³⁷ = 105881146639 is a prime.

It is a super-2 number, since 2×243320100111² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243320100119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2205025 + ... + 2312741.

It is an arithmetic number, because the mean of its divisors is an integer number (15976410606).

Almost surely, 2^243320100111 is an apocalyptic number.

243320100111 is a deficient number, since it is larger than the sum of its proper divisors (140113754433).

243320100111 is a wasteful number, since it uses less digits than its factorization.

243320100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130551 (or 130548 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 243320100111 its reverse (111001023342), we get a palindrome (354321123453).

The spelling of 243320100111 in words is "two hundred forty-three billion, three hundred twenty million, one hundred thousand, one hundred eleven".