213020030 has 16 divisors (see below), whose sum is σ = 405991440. Its totient is φ = 80195712.

The previous prime is 213019999. The next prime is 213020053. The reversal of 213020030 is 30020312.

It is a junction number, because it is equal to n+sod(n) for n = 213019993 and 213020020.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 626360 + ... + 626699.

It is an arithmetic number, because the mean of its divisors is an integer number (25374465).

Almost surely, 2^213020030 is an apocalyptic number.

213020030 is a deficient number, since it is larger than the sum of its proper divisors (192971410).

213020030 is a wasteful number, since it uses less digits than its factorization.

213020030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253083.

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

The square root of 213020030 is about 14595.2057196875. The cubic root of 213020030 is about 597.2279814295.

Adding to 213020030 its reverse (30020312), we get a palindrome (243040342).

The spelling of 213020030 in words is "two hundred thirteen million, twenty thousand, thirty".