213103320 has 64 divisors (see below), whose sum is σ = 640573920. Its totient is φ = 56715264.

The previous prime is 213103309. The next prime is 213103327. The reversal of 213103320 is 23301312.

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

It is a self number, because there is not a number n which added to its sum of digits gives 213103320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213103327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72112 + ... + 75008.

Almost surely, 2^213103320 is an apocalyptic number.

213103320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213103320 is an abundant number, since it is smaller than the sum of its proper divisors (427470600).

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

213103320 is a wasteful number, since it uses less digits than its factorization.

213103320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524 (or 3520 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 213103320 is about 14598.0587750564. The cubic root of 213103320 is about 597.3058092233.

Adding to 213103320 its reverse (23301312), we get a palindrome (236404632).

The spelling of 213103320 in words is "two hundred thirteen million, one hundred three thousand, three hundred twenty".