20126203005 has 16 divisors (see below), whose sum is σ = 33240697344. Its totient is φ = 10387717440.

The previous prime is 20126202989. The next prime is 20126203007. The reversal of 20126203005 is 50030262102.

It is not a de Polignac number, because 20126203005 - 2⁴ = 20126202989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126203007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21640614 + ... + 21641543.

It is an arithmetic number, because the mean of its divisors is an integer number (2077543584).

Almost surely, 2^20126203005 is an apocalyptic number.

It is an amenable number.

20126203005 is a deficient number, since it is larger than the sum of its proper divisors (13114494339).

20126203005 is a wasteful number, since it uses less digits than its factorization.

20126203005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43282196.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20126203005 its reverse (50030262102), we get a palindrome (70156465107).

The spelling of 20126203005 in words is "twenty billion, one hundred twenty-six million, two hundred three thousand, five".