2043321020 has 24 divisors (see below), whose sum is σ = 4621049664. Its totient is φ = 754456896.

The previous prime is 2043321019. The next prime is 2043321023. The reversal of 2043321020 is 201233402.

It is a self number, because there is not a number n which added to its sum of digits gives 2043321020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043321023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3929204 + ... + 3929723.

It is an arithmetic number, because the mean of its divisors is an integer number (192543736).

Almost surely, 2^2043321020 is an apocalyptic number.

2043321020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043321020 is an abundant number, since it is smaller than the sum of its proper divisors (2577728644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2043321020 is a wasteful number, since it uses less digits than its factorization.

2043321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858949 (or 7858947 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2043321020 is about 45203.1085214280. The cubic root of 2043321020 is about 1268.9529924424.

Adding to 2043321020 its reverse (201233402), we get a palindrome (2244554422).

The spelling of 2043321020 in words is "two billion, forty-three million, three hundred twenty-one thousand, twenty".