20124140211 has 36 divisors (see below), whose sum is σ = 34162702392. Its totient is φ = 11380932864.

The previous prime is 20124140207. The next prime is 20124140251. The reversal of 20124140211 is 11204142102.

20124140211 is a `hidden beast` number, since 20 + 1 + 241 + 402 + 1 + 1 = 666.

It is not a de Polignac number, because 20124140211 - 2² = 20124140207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20124140251) 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 35 ways as a sum of consecutive naturals, for example, 192445 + ... + 277998.

Almost surely, 2^20124140211 is an apocalyptic number.

20124140211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20124140211 is a deficient number, since it is larger than the sum of its proper divisors (14038562181).

20124140211 is a wasteful number, since it uses less digits than its factorization.

20124140211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470560 (or 470550 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20124140211 its reverse (11204142102), we get a palindrome (31328282313).

The spelling of 20124140211 in words is "twenty billion, one hundred twenty-four million, one hundred forty thousand, two hundred eleven".