11231110211 has 8 divisors (see below), whose sum is σ = 11348543664. Its totient is φ = 11113799200.

The previous prime is 11231110207. The next prime is 11231110283. The reversal of 11231110211 is 11201113211.

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 11231110211 - 2² = 11231110207 is a prime.

It is a super-2 number, since 2×11231110211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231110201) 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, 159956 + ... + 219198.

It is an arithmetic number, because the mean of its divisors is an integer number (1418567958).

Almost surely, 2^11231110211 is an apocalyptic number.

11231110211 is a deficient number, since it is larger than the sum of its proper divisors (117433453).

11231110211 is a wasteful number, since it uses less digits than its factorization.

11231110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61221.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11231110211 its reverse (11201113211), we get a palindrome (22432223422).

The spelling of 11231110211 in words is "eleven billion, two hundred thirty-one million, one hundred ten thousand, two hundred eleven".