213313403 has 8 divisors (see below), whose sum is σ = 216155856. Its totient is φ = 210477600.

The previous prime is 213313369. The next prime is 213313417. The reversal of 213313403 is 304313312.

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

It is a cyclic number.

It is not a de Polignac number, because 213313403 - 2⁸ = 213313147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213313493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113693 + ... + 115553.

It is an arithmetic number, because the mean of its divisors is an integer number (27019482).

Almost surely, 2^213313403 is an apocalyptic number.

213313403 is a deficient number, since it is larger than the sum of its proper divisors (2842453).

213313403 is a wasteful number, since it uses less digits than its factorization.

213313403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 213313403 is about 14605.2525825471. The cubic root of 213313403 is about 597.5020248176.

Adding to 213313403 its reverse (304313312), we get a palindrome (517626715).

Subtracting 213313403 from its reverse (304313312), we obtain a palindrome (90999909).

The spelling of 213313403 in words is "two hundred thirteen million, three hundred thirteen thousand, four hundred three".