11135423212 has 24 divisors (see below), whose sum is σ = 19772511696. Its totient is φ = 5486277888.

The previous prime is 11135423209. The next prime is 11135423213. The reversal of 11135423212 is 21232453111.

It is a super-2 number, since 2×11135423212² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11135423213) 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, 302943 + ... + 337705.

It is an arithmetic number, because the mean of its divisors is an integer number (823854654).

Almost surely, 2^11135423212 is an apocalyptic number.

It is an amenable number.

11135423212 is a deficient number, since it is larger than the sum of its proper divisors (8637088484).

11135423212 is a wasteful number, since it uses less digits than its factorization.

11135423212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35937 (or 35935 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

Adding to 11135423212 its reverse (21232453111), we get a palindrome (32367876323).

The spelling of 11135423212 in words is "eleven billion, one hundred thirty-five million, four hundred twenty-three thousand, two hundred twelve".