213030104 has 64 divisors (see below), whose sum is σ = 467596800. Its totient is φ = 89107200.

The previous prime is 213030091. The next prime is 213030107. The reversal of 213030104 is 401030312.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 15 ways as a sum of consecutive naturals, for example, 520652 + ... + 521060.

It is an arithmetic number, because the mean of its divisors is an integer number (7306200).

Almost surely, 2^213030104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213030104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233798400).

213030104 is an abundant number, since it is smaller than the sum of its proper divisors (254566696).

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

213030104 is a wasteful number, since it uses less digits than its factorization.

213030104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 213030104 is about 14595.5508289341. The cubic root of 213030104 is about 597.2373958492.

Adding to 213030104 its reverse (401030312), we get a palindrome (614060416).

The spelling of 213030104 in words is "two hundred thirteen million, thirty thousand, one hundred four".