2143303020 has 72 divisors (see below), whose sum is σ = 6506332560. Its totient is φ = 571109760.

The previous prime is 2143303007. The next prime is 2143303069. The reversal of 2143303020 is 203033412.

It is a super-2 number, since 2×2143303020² = 9187495671082240800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2143302984 and 2143303002.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 280450 + ... + 287990.

It is an arithmetic number, because the mean of its divisors is an integer number (90365730).

Almost surely, 2^2143303020 is an apocalyptic number.

2143303020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143303020 is an abundant number, since it is smaller than the sum of its proper divisors (4363029540).

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

2143303020 is a wasteful number, since it uses less digits than its factorization.

2143303020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9135 (or 9130 counting only the distinct ones).

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

The square root of 2143303020 is about 46295.8207617059. The cubic root of 2143303020 is about 1289.3214025998.

Adding to 2143303020 its reverse (203033412), we get a palindrome (2346336432).

The spelling of 2143303020 in words is "two billion, one hundred forty-three million, three hundred three thousand, twenty".