213321031017 has 16 divisors (see below), whose sum is σ = 286475108160. Its totient is φ = 141193785600.

The previous prime is 213321031003. The next prime is 213321031019. The reversal of 213321031017 is 710130123312.

It is not a de Polignac number, because 213321031017 - 2¹⁴ = 213321014633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213321031019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153084 + ... + 670877.

It is an arithmetic number, because the mean of its divisors is an integer number (17904694260).

Almost surely, 2^213321031017 is an apocalyptic number.

It is an amenable number.

213321031017 is a deficient number, since it is larger than the sum of its proper divisors (73154077143).

213321031017 is a wasteful number, since it uses less digits than its factorization.

213321031017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824584.

The product of its (nonzero) digits is 756, while the sum is 24.

Adding to 213321031017 its reverse (710130123312), we get a palindrome (923451154329).

The spelling of 213321031017 in words is "two hundred thirteen billion, three hundred twenty-one million, thirty-one thousand, seventeen".