11543220334 has 8 divisors (see below), whose sum is σ = 17324080560. Its totient is φ = 5768526816.

The previous prime is 11543220331. The next prime is 11543220379. The reversal of 11543220334 is 43302234511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543220331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1536994 + ... + 1544485.

It is an arithmetic number, because the mean of its divisors is an integer number (2165510070).

Almost surely, 2^11543220334 is an apocalyptic number.

11543220334 is a deficient number, since it is larger than the sum of its proper divisors (5780860226).

11543220334 is a wasteful number, since it uses less digits than its factorization.

11543220334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083354.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 11543220334 its reverse (43302234511), we get a palindrome (54845454845).

The spelling of 11543220334 in words is "eleven billion, five hundred forty-three million, two hundred twenty thousand, three hundred thirty-four".