20012203203 has 16 divisors (see below), whose sum is σ = 26881683456. Its totient is φ = 13242404160.

The previous prime is 20012203187. The next prime is 20012203301. The reversal of 20012203203 is 30230221002.

It is not a de Polignac number, because 20012203203 - 2⁴ = 20012203187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20012203403) 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, 223650 + ... + 300072.

It is an arithmetic number, because the mean of its divisors is an integer number (1680105216).

Almost surely, 2^20012203203 is an apocalyptic number.

20012203203 is a deficient number, since it is larger than the sum of its proper divisors (6869480253).

20012203203 is a wasteful number, since it uses less digits than its factorization.

20012203203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77074.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20012203203 its reverse (30230221002), we get a palindrome (50242424205).

The spelling of 20012203203 in words is "twenty billion, twelve million, two hundred three thousand, two hundred three".