213300020 has 24 divisors (see below), whose sum is σ = 474279624. Its totient is φ = 80301056.

The previous prime is 213300019. The next prime is 213300067. The reversal of 213300020 is 20003312.

It can be written as a sum of positive squares in 4 ways, for example, as 33686416 + 179613604 = 5804^2 + 13402^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213299974 and 213300010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313337 + ... + 314016.

It is an arithmetic number, because the mean of its divisors is an integer number (19761651).

Almost surely, 2^213300020 is an apocalyptic number.

213300020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213300020 is an abundant number, since it is smaller than the sum of its proper divisors (260979604).

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

213300020 is a wasteful number, since it uses less digits than its factorization.

213300020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627379 (or 627377 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 213300020 is about 14604.7944182724. The cubic root of 213300020 is about 597.4895290614.

Adding to 213300020 its reverse (20003312), we get a palindrome (233303332).

The spelling of 213300020 in words is "two hundred thirteen million, three hundred thousand, twenty".