213103221303 has 8 divisors (see below), whose sum is σ = 324728718208. Its totient is φ = 121773269304.

The previous prime is 213103221301. The next prime is 213103221311. The reversal of 213103221303 is 303122301312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213103221303 - 2¹ = 213103221301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10147772443 = 213103221303 / (2 + 1 + 3 + 1 + 0 + 3 + 2 + 2 + 1 + 3 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213103221303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213103221301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5073886201 + ... + 5073886242.

It is an arithmetic number, because the mean of its divisors is an integer number (40591089776).

Almost surely, 2^213103221303 is an apocalyptic number.

213103221303 is a deficient number, since it is larger than the sum of its proper divisors (111625496905).

213103221303 is a wasteful number, since it uses less digits than its factorization.

213103221303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10147772453.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 213103221303 its reverse (303122301312), we get a palindrome (516225522615).

The spelling of 213103221303 in words is "two hundred thirteen billion, one hundred three million, two hundred twenty-one thousand, three hundred three".