11133431412 has 48 divisors (see below), whose sum is σ = 26885779200. Its totient is φ = 3581576320.

The previous prime is 11133431381. The next prime is 11133431429. The reversal of 11133431412 is 21413433111.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 964837 + ... + 976307.

It is an arithmetic number, because the mean of its divisors is an integer number (560120400).

Almost surely, 2^11133431412 is an apocalyptic number.

11133431412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11133431412 is an abundant number, since it is smaller than the sum of its proper divisors (15752347788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11133431412 is a wasteful number, since it uses less digits than its factorization.

11133431412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14296 (or 14294 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 11133431412 its reverse (21413433111), we get a palindrome (32546864523).

The spelling of 11133431412 in words is "eleven billion, one hundred thirty-three million, four hundred thirty-one thousand, four hundred twelve".