11230143 has 4 divisors (see below), whose sum is σ = 14973528. Its totient is φ = 7486760.

The previous prime is 11230139. The next prime is 11230157. The reversal of 11230143 is 34103211.

11230143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11230143 - 2² = 11230139 is a prime.

It is a super-2 number, since 2×11230143² = 252232223600898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871688 + ... + 1871693.

It is an arithmetic number, because the mean of its divisors is an integer number (3743382).

Almost surely, 2^11230143 is an apocalyptic number.

11230143 is a deficient number, since it is larger than the sum of its proper divisors (3743385).

11230143 is an equidigital number, since it uses as much as digits as its factorization.

11230143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743384.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11230143 is about 3351.1405521106. The cubic root of 11230143 is about 223.9383267181.

Adding to 11230143 its reverse (34103211), we get a palindrome (45333354).

The spelling of 11230143 in words is "eleven million, two hundred thirty thousand, one hundred forty-three".