213030100 has 36 divisors (see below), whose sum is σ = 462963424. Its totient is φ = 85085280.

The previous prime is 213030091. The next prime is 213030107. The reversal of 213030100 is 1030312.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213030107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95599 + ... + 97801.

Almost surely, 2^213030100 is an apocalyptic number.

213030100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213030100 is an abundant number, since it is smaller than the sum of its proper divisors (249933324).

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

213030100 is a wasteful number, since it uses less digits than its factorization.

213030100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184 (or 3177 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 213030100 is about 14595.5506919061. The cubic root of 213030100 is about 597.2373921111.

Adding to 213030100 its reverse (1030312), we get a palindrome (214060412).

The spelling of 213030100 in words is "two hundred thirteen million, thirty thousand, one hundred".