213011321003 has 4 divisors (see below), whose sum is σ = 229396807248. Its totient is φ = 196625834760.

The previous prime is 213011320999. The next prime is 213011321011. The reversal of 213011321003 is 300123110312.

213011321003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213011321003 - 2² = 213011320999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213011321203) 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 3 ways as a sum of consecutive naturals, for example, 8192743103 + ... + 8192743128.

It is an arithmetic number, because the mean of its divisors is an integer number (57349201812).

Almost surely, 2^213011321003 is an apocalyptic number.

213011321003 is a deficient number, since it is larger than the sum of its proper divisors (16385486245).

213011321003 is a wasteful number, since it uses less digits than its factorization.

213011321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16385486244.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 213011321003 its reverse (300123110312), we get a palindrome (513134431315).

The spelling of 213011321003 in words is "two hundred thirteen billion, eleven million, three hundred twenty-one thousand, three".