211130013011 has 4 divisors (see below), whose sum is σ = 217940658624. Its totient is φ = 204319367400.

The previous prime is 211130012987. The next prime is 211130013041. The reversal of 211130013011 is 110310031112.

It is a happy number.

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 211130013011 - 2¹⁰ = 211130011987 is a prime.

It is a super-2 number, since 2×211130013011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211130013041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3405322760 + ... + 3405322821.

It is an arithmetic number, because the mean of its divisors is an integer number (54485164656).

Almost surely, 2^211130013011 is an apocalyptic number.

211130013011 is a deficient number, since it is larger than the sum of its proper divisors (6810645613).

211130013011 is an equidigital number, since it uses as much as digits as its factorization.

211130013011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810645612.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 211130013011 its reverse (110310031112), we get a palindrome (321440044123).

The spelling of 211130013011 in words is "two hundred eleven billion, one hundred thirty million, thirteen thousand, eleven".