11123233213 has 16 divisors (see below), whose sum is σ = 11768051200. Its totient is φ = 10484478000.

The previous prime is 11123233201. The next prime is 11123233223. The reversal of 11123233213 is 31233232111.

It is a cyclic number.

It is not a de Polignac number, because 11123233213 - 2¹³ = 11123225021 is a prime.

It is a super-2 number, since 2×11123233213² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123233223) 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, 4940338 + ... + 4942588.

It is an arithmetic number, because the mean of its divisors is an integer number (735503200).

Almost surely, 2^11123233213 is an apocalyptic number.

It is an amenable number.

11123233213 is a deficient number, since it is larger than the sum of its proper divisors (644817987).

11123233213 is a wasteful number, since it uses less digits than its factorization.

11123233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472.

The product of its digits is 648, while the sum is 22.

Adding to 11123233213 its reverse (31233232111), we get a palindrome (42356465324).

The spelling of 11123233213 in words is "eleven billion, one hundred twenty-three million, two hundred thirty-three thousand, two hundred thirteen".