2021423312 has 20 divisors (see below), whose sum is σ = 3952442340. Its totient is φ = 1001438208.

The previous prime is 2021423309. The next prime is 2021423317. The reversal of 2021423312 is 2133241202.

It can be written as a sum of positive squares in 2 ways, for example, as 1752594496 + 268828816 = 41864^2 + 16396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021423317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577793 + ... + 581280.

It is an arithmetic number, because the mean of its divisors is an integer number (197622117).

Almost surely, 2^2021423312 is an apocalyptic number.

It is an amenable number.

2021423312 is a deficient number, since it is larger than the sum of its proper divisors (1931019028).

2021423312 is a wasteful number, since it uses less digits than its factorization.

2021423312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159190 (or 1159184 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2021423312 is about 44960.2414584264. The cubic root of 2021423312 is about 1264.4036958951.

Adding to 2021423312 its reverse (2133241202), we get a palindrome (4154664514).

The spelling of 2021423312 in words is "two billion, twenty-one million, four hundred twenty-three thousand, three hundred twelve".