20124332005 has 16 divisors (see below), whose sum is σ = 24991236864. Its totient is φ = 15544751040.

The previous prime is 20124331963. The next prime is 20124332009. The reversal of 20124332005 is 50023342102.

It is a de Polignac number, because none of the positive numbers 2^k-20124332005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124332009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390957 + ... + 439426.

It is an arithmetic number, because the mean of its divisors is an integer number (1561952304).

Almost surely, 2^20124332005 is an apocalyptic number.

It is an amenable number.

20124332005 is a deficient number, since it is larger than the sum of its proper divisors (4866904859).

20124332005 is a wasteful number, since it uses less digits than its factorization.

20124332005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830556.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20124332005 its reverse (50023342102), we get a palindrome (70147674107).

The spelling of 20124332005 in words is "twenty billion, one hundred twenty-four million, three hundred thirty-two thousand, five".