11353143 has 4 divisors (see below), whose sum is σ = 15137528. Its totient is φ = 7568760.

The previous prime is 11353129. The next prime is 11353151. The reversal of 11353143 is 34135311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11353143 - 2⁹ = 11352631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11353163) 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, 1892188 + ... + 1892193.

It is an arithmetic number, because the mean of its divisors is an integer number (3784382).

Almost surely, 2^11353143 is an apocalyptic number.

11353143 is a deficient number, since it is larger than the sum of its proper divisors (3784385).

11353143 is an equidigital number, since it uses as much as digits as its factorization.

11353143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784384.

The product of its digits is 540, while the sum is 21.

The square root of 11353143 is about 3369.4425354946. The cubic root of 11353143 is about 224.7529337410.

Adding to 11353143 its reverse (34135311), we get a palindrome (45488454).

It can be divided in two parts, 1135 and 3143, that added together give a triangular number (4278 = T₉₂).

The spelling of 11353143 in words is "eleven million, three hundred fifty-three thousand, one hundred forty-three".