11113133213 has 24 divisors (see below), whose sum is σ = 14118088320. Its totient is φ = 8668931040.

The previous prime is 11113133209. The next prime is 11113133249. The reversal of 11113133213 is 31233131111.

It is not a de Polignac number, because 11113133213 - 2² = 11113133209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113103213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77633 + ... + 168086.

It is an arithmetic number, because the mean of its divisors is an integer number (588253680).

Almost surely, 2^11113133213 is an apocalyptic number.

11113133213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11113133213 is a deficient number, since it is larger than the sum of its proper divisors (3004955107).

11113133213 is a wasteful number, since it uses less digits than its factorization.

11113133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245817 (or 245810 counting only the distinct ones).

The product of its digits is 162, while the sum is 20.

Adding to 11113133213 its reverse (31233131111), we get a palindrome (42346264324).

The spelling of 11113133213 in words is "eleven billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred thirteen".