20213220303 has 32 divisors (see below), whose sum is σ = 31758681600. Its totient is φ = 12662137728.

The previous prime is 20213220301. The next prime is 20213220311. The reversal of 20213220303 is 30302231202.

It is a happy number.

20213220303 is a `hidden beast` number, since 20 + 21 + 322 + 0 + 303 = 666.

It is not a de Polignac number, because 20213220303 - 2¹ = 20213220301 is a prime.

It is a super-2 number, since 2×20213220303² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213220301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248550 + ... + 319692.

It is an arithmetic number, because the mean of its divisors is an integer number (992458800).

Almost surely, 2^20213220303 is an apocalyptic number.

20213220303 is a deficient number, since it is larger than the sum of its proper divisors (11545461297).

20213220303 is a wasteful number, since it uses less digits than its factorization.

20213220303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71788 (or 71782 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20213220303 its reverse (30302231202), we get a palindrome (50515451505).

The spelling of 20213220303 in words is "twenty billion, two hundred thirteen million, two hundred twenty thousand, three hundred three".