213020205 has 32 divisors (see below), whose sum is σ = 347428224. Its totient is φ = 111430656.

The previous prime is 213020161. The next prime is 213020231. The reversal of 213020205 is 502020312.

It is not a de Polignac number, because 213020205 - 2¹⁶ = 212954669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248137 + ... + 248993.

It is an arithmetic number, because the mean of its divisors is an integer number (10857132).

Almost surely, 2^213020205 is an apocalyptic number.

It is an amenable number.

213020205 is a deficient number, since it is larger than the sum of its proper divisors (134408019).

213020205 is a wasteful number, since it uses less digits than its factorization.

213020205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 213020205 is about 14595.2117148056. The cubic root of 213020205 is about 597.2281449742.

Adding to 213020205 its reverse (502020312), we get a palindrome (715040517).

The spelling of 213020205 in words is "two hundred thirteen million, twenty thousand, two hundred five".