213211040310520 has 64 divisors (see below), whose sum is σ = 548260571980800. Its totient is φ = 73100446615680.

The previous prime is 213211040310517. The next prime is 213211040310553. The reversal of 213211040310520 is 25013040112312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41451915 + ... + 46310725.

It is an arithmetic number, because the mean of its divisors is an integer number (8566571437200).

Almost surely, 2^{213211040310520} is an apocalyptic number.

213211040310520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213211040310520 is an abundant number, since it is smaller than the sum of its proper divisors (335049531670280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213211040310520 is a wasteful number, since it uses less digits than its factorization.

213211040310520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015548 (or 5015544 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 213211040310520 its reverse (25013040112312), we get a palindrome (238224080422832).

The spelling of 213211040310520 in words is "two hundred thirteen trillion, two hundred eleven billion, forty million, three hundred ten thousand, five hundred twenty".