20112030243 has 16 divisors (see below), whose sum is σ = 30522324000. Its totient is φ = 13080994560.

The previous prime is 20112030229. The next prime is 20112030247. The reversal of 20112030243 is 34203021102.

20112030243 is a `hidden beast` number, since 201 + 120 + 302 + 43 = 666.

It is not a de Polignac number, because 20112030243 - 2⁴ = 20112030227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20112030247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9082918 + ... + 9085131.

It is an arithmetic number, because the mean of its divisors is an integer number (1907645250).

Almost surely, 2^20112030243 is an apocalyptic number.

20112030243 is a deficient number, since it is larger than the sum of its proper divisors (10410293757).

20112030243 is a wasteful number, since it uses less digits than its factorization.

20112030243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18168099 (or 18168093 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20112030243 its reverse (34203021102), we get a palindrome (54315051345).

The spelling of 20112030243 in words is "twenty billion, one hundred twelve million, thirty thousand, two hundred forty-three".