213141403 has 4 divisors (see below), whose sum is σ = 213181488. Its totient is φ = 213101320.

The previous prime is 213141389. The next prime is 213141407. The reversal of 213141403 is 304141312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213141403 - 2⁹ = 213140891 is a prime.

It is a super-3 number, since 3×213141403³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213141407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10576 + ... + 23197.

It is an arithmetic number, because the mean of its divisors is an integer number (53295372).

Almost surely, 2^213141403 is an apocalyptic number.

213141403 is a deficient number, since it is larger than the sum of its proper divisors (40085).

213141403 is an equidigital number, since it uses as much as digits as its factorization.

213141403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40084.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 213141403 is about 14599.3631025466. The cubic root of 213141403 is about 597.3413879623.

Adding to 213141403 its reverse (304141312), we get a palindrome (517282715).

Subtracting 213141403 from its reverse (304141312), we obtain a palindrome (90999909).

It can be divided in two parts, 2131 and 41403, that added together give a palindrome (43534).

The spelling of 213141403 in words is "two hundred thirteen million, one hundred forty-one thousand, four hundred three".