11123213311 has 8 divisors (see below), whose sum is σ = 12982717440. Its totient is φ = 9331327608.

The previous prime is 11123213293. The next prime is 11123213327. The reversal of 11123213311 is 11331232111.

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 11123213311 - 2¹⁹ = 11122689023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123211311) 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, 16904251 + ... + 16904908.

It is an arithmetic number, because the mean of its divisors is an integer number (1622839680).

Almost surely, 2^11123213311 is an apocalyptic number.

11123213311 is a deficient number, since it is larger than the sum of its proper divisors (1859504129).

11123213311 is an equidigital number, since it uses as much as digits as its factorization.

11123213311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33809213.

The product of its digits is 108, while the sum is 19.

Adding to 11123213311 its reverse (11331232111), we get a palindrome (22454445422).

The spelling of 11123213311 in words is "eleven billion, one hundred twenty-three million, two hundred thirteen thousand, three hundred eleven".