213215003 has 4 divisors (see below), whose sum is σ = 225757080. Its totient is φ = 200672928.

The previous prime is 213214997. The next prime is 213215011. The reversal of 213215003 is 300512312.

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 213215003 - 2²² = 209020699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 12542059 = 213215003 / (2 + 1 + 3 + 2 + 1 + 5 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213215033) 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, 6271013 + ... + 6271046.

It is an arithmetic number, because the mean of its divisors is an integer number (56439270).

Almost surely, 2^213215003 is an apocalyptic number.

213215003 is a deficient number, since it is larger than the sum of its proper divisors (12542077).

213215003 is a wasteful number, since it uses less digits than its factorization.

213215003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12542076.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 213215003 is about 14601.8835428858. The cubic root of 213215003 is about 597.4101361674.

Adding to 213215003 its reverse (300512312), we get a palindrome (513727315).

The spelling of 213215003 in words is "two hundred thirteen million, two hundred fifteen thousand, three".