213011003 has 24 divisors (see below), whose sum is σ = 239308992. Its totient is φ = 188851712.

The previous prime is 213010997. The next prime is 213011011. The reversal of 213011003 is 300110312.

213011003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-213011003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213011083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 671801 + ... + 672117.

It is an arithmetic number, because the mean of its divisors is an integer number (9971208).

Almost surely, 2^213011003 is an apocalyptic number.

213011003 is a deficient number, since it is larger than the sum of its proper divisors (26297989).

213011003 is a wasteful number, since it uses less digits than its factorization.

213011003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 213011003 is about 14594.8964710271. The cubic root of 213011003 is about 597.2195452070.

Adding to 213011003 its reverse (300110312), we get a palindrome (513121315).

The spelling of 213011003 in words is "two hundred thirteen million, eleven thousand, three".