211020101311 has 8 divisors (see below), whose sum is σ = 211511462400. Its totient is φ = 210528952920.

The previous prime is 211020101309. The next prime is 211020101339. The reversal of 211020101311 is 113101020112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211020101311 - 2¹ = 211020101309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211020101291 and 211020101300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020101011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2027616 + ... + 2129146.

It is an arithmetic number, because the mean of its divisors is an integer number (26438932800).

Almost surely, 2^211020101311 is an apocalyptic number.

211020101311 is a deficient number, since it is larger than the sum of its proper divisors (491361089).

211020101311 is a wasteful number, since it uses less digits than its factorization.

211020101311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106349.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 211020101311 its reverse (113101020112), we get a palindrome (324121121423).

The spelling of 211020101311 in words is "two hundred eleven billion, twenty million, one hundred one thousand, three hundred eleven".