200321020 has 12 divisors (see below), whose sum is σ = 420674184. Its totient is φ = 80128400.

The previous prime is 200320999. The next prime is 200321027. The reversal of 200321020 is 20123002.

It is a super-2 number, since 2×200321020² = 80257022107680800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 200320988 and 200321006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200321027) 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, 5008006 + ... + 5008045.

It is an arithmetic number, because the mean of its divisors is an integer number (35056182).

Almost surely, 2^200321020 is an apocalyptic number.

200321020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200321020 is an abundant number, since it is smaller than the sum of its proper divisors (220353164).

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

200321020 is a wasteful number, since it uses less digits than its factorization.

200321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10016060 (or 10016058 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 200321020 is about 14153.4808439479. The cubic root of 200321020 is about 585.1162697769.

Adding to 200321020 its reverse (20123002), we get a palindrome (220444022).

The spelling of 200321020 in words is "two hundred million, three hundred twenty-one thousand, twenty".