212013312113 has 16 divisors (see below), whose sum is σ = 221234098176. Its totient is φ = 203020930560.

The previous prime is 212013312109. The next prime is 212013312187. The reversal of 212013312113 is 311213310212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212013312113 - 2² = 212013312109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212013312613) 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, 255056 + ... + 699342.

It is an arithmetic number, because the mean of its divisors is an integer number (13827131136).

Almost surely, 2^212013312113 is an apocalyptic number.

It is an amenable number.

212013312113 is a deficient number, since it is larger than the sum of its proper divisors (9220786063).

212013312113 is a wasteful number, since it uses less digits than its factorization.

212013312113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444544.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 212013312113 its reverse (311213310212), we get a palindrome (523226622325).

The spelling of 212013312113 in words is "two hundred twelve billion, thirteen million, three hundred twelve thousand, one hundred thirteen".