20303213203 has 32 divisors (see below), whose sum is σ = 26591846400. Its totient is φ = 15042931200.

The previous prime is 20303213197. The next prime is 20303213219. The reversal of 20303213203 is 30231230302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20303213203 - 2¹⁷ = 20303082131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20303213233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274878 + ... + 340828.

It is an arithmetic number, because the mean of its divisors is an integer number (830995200).

Almost surely, 2^20303213203 is an apocalyptic number.

20303213203 is a deficient number, since it is larger than the sum of its proper divisors (6288633197).

20303213203 is a wasteful number, since it uses less digits than its factorization.

20303213203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66187.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20303213203 its reverse (30231230302), we get a palindrome (50534443505).

The spelling of 20303213203 in words is "twenty billion, three hundred three million, two hundred thirteen thousand, two hundred three".