213035020 has 72 divisors (see below), whose sum is σ = 502471872. Its totient is φ = 75778560.

The previous prime is 213034979. The next prime is 213035023. The reversal of 213035020 is 20530312.

It is a junction number, because it is equal to n+sod(n) for n = 213034985 and 213035003.

It is not an unprimeable number, because it can be changed into a prime (213035023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112804 + ... + 114676.

It is an arithmetic number, because the mean of its divisors is an integer number (6978776).

Almost surely, 2^213035020 is an apocalyptic number.

213035020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213035020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251235936).

213035020 is an abundant number, since it is smaller than the sum of its proper divisors (289436852).

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

213035020 is a wasteful number, since it uses less digits than its factorization.

213035020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 213035020 is about 14595.7192354471. The cubic root of 213035020 is about 597.2419898735.

Adding to 213035020 its reverse (20530312), we get a palindrome (233565332).

The spelling of 213035020 in words is "two hundred thirteen million, thirty-five thousand, twenty".