20113203005 has 16 divisors (see below), whose sum is σ = 27893756160. Its totient is φ = 13636943232.

The previous prime is 20113202999. The next prime is 20113203029. The reversal of 20113203005 is 50030231102.

It is a cyclic number.

It is not a de Polignac number, because 20113203005 - 2²⁸ = 19844767549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3225329 + ... + 3231558.

It is an arithmetic number, because the mean of its divisors is an integer number (1743359760).

Almost surely, 2^20113203005 is an apocalyptic number.

It is an amenable number.

20113203005 is a deficient number, since it is larger than the sum of its proper divisors (7780553155).

20113203005 is an equidigital number, since it uses as much as digits as its factorization.

20113203005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456988.

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 20113203005 its reverse (50030231102), we get a palindrome (70143434107).

The spelling of 20113203005 in words is "twenty billion, one hundred thirteen million, two hundred three thousand, five".