11143320234 has 16 divisors (see below), whose sum is σ = 22428595488. Its totient is φ = 3690780912.

The previous prime is 11143320217. The next prime is 11143320239. The reversal of 11143320234 is 43202334111.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11143320239) 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, 5913772 + ... + 5915655.

It is an arithmetic number, because the mean of its divisors is an integer number (1401787218).

Almost surely, 2^11143320234 is an apocalyptic number.

11143320234 is an abundant number, since it is smaller than the sum of its proper divisors (11285275254).

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

11143320234 is a wasteful number, since it uses less digits than its factorization.

11143320234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11829589.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 11143320234 its reverse (43202334111), we get a palindrome (54345654345).

The spelling of 11143320234 in words is "eleven billion, one hundred forty-three million, three hundred twenty thousand, two hundred thirty-four".