2021303223 has 12 divisors (see below), whose sum is σ = 2920764808. Its totient is φ = 1347025680.

The previous prime is 2021303183. The next prime is 2021303287. The reversal of 2021303223 is 3223031202.

It is a happy number.

It is not a de Polignac number, because 2021303223 - 2¹² = 2021299127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021303196 and 2021303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021303023) 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 11 ways as a sum of consecutive naturals, for example, 16540 + ... + 65697.

Almost surely, 2^2021303223 is an apocalyptic number.

2021303223 is a deficient number, since it is larger than the sum of its proper divisors (899461585).

2021303223 is a wasteful number, since it uses less digits than its factorization.

2021303223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84974 (or 84971 counting only the distinct ones).

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

The square root of 2021303223 is about 44958.9059364215. The cubic root of 2021303223 is about 1264.3786567752.

Adding to 2021303223 its reverse (3223031202), we get a palindrome (5244334425).

The spelling of 2021303223 in words is "two billion, twenty-one million, three hundred three thousand, two hundred twenty-three".