11211304143 has 32 divisors (see below), whose sum is σ = 17059424256. Its totient is φ = 6488022528.

The previous prime is 11211304127. The next prime is 11211304147. The reversal of 11211304143 is 34140311211.

It is not a de Polignac number, because 11211304143 - 2⁴ = 11211304127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211304147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 873430 + ... + 886172.

It is an arithmetic number, because the mean of its divisors is an integer number (533107008).

Almost surely, 2^11211304143 is an apocalyptic number.

11211304143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11211304143 is a deficient number, since it is larger than the sum of its proper divisors (5848120113).

11211304143 is a wasteful number, since it uses less digits than its factorization.

11211304143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14103.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11211304143 its reverse (34140311211), we get a palindrome (45351615354).

The spelling of 11211304143 in words is "eleven billion, two hundred eleven million, three hundred four thousand, one hundred forty-three".