11012143 has 4 divisors (see below), whose sum is σ = 11086200. Its totient is φ = 10938088.

The previous prime is 11012129. The next prime is 11012167. The reversal of 11012143 is 34121011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34121011 = 97 ⋅351763.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11012143 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 (11012543) 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, 36805 + ... + 37102.

It is an arithmetic number, because the mean of its divisors is an integer number (2771550).

Almost surely, 2^11012143 is an apocalyptic number.

11012143 is a deficient number, since it is larger than the sum of its proper divisors (74057).

11012143 is an equidigital number, since it uses as much as digits as its factorization.

11012143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74056.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 11012143 is about 3318.4549115515. The cubic root of 11012143 is about 222.4798146903.

Adding to 11012143 its reverse (34121011), we get a palindrome (45133154).

The spelling of 11012143 in words is "eleven million, twelve thousand, one hundred forty-three".