20112430005 has 40 divisors (see below), whose sum is σ = 36081526272. Its totient is φ = 10718259552.

The previous prime is 20112429929. The next prime is 20112430007. The reversal of 20112430005 is 50003421102.

It is not a de Polignac number, because 20112430005 - 2²² = 20108235701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20112430005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112430007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 518724 + ... + 556146.

Almost surely, 2^20112430005 is an apocalyptic number.

It is an amenable number.

20112430005 is a deficient number, since it is larger than the sum of its proper divisors (15969096267).

20112430005 is a wasteful number, since it uses less digits than its factorization.

20112430005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38767 (or 38758 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 20112430005 its reverse (50003421102), we get a palindrome (70115851107).

The spelling of 20112430005 in words is "twenty billion, one hundred twelve million, four hundred thirty thousand, five".