11031143 has 8 divisors (see below), whose sum is σ = 11371728. Its totient is φ = 10692864.

The previous prime is 11031121. The next prime is 11031161. The reversal of 11031143 is 34113011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11031143 is a prime.

It is a super-2 number, since 2×11031143² = 243372231772898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16055 + ... + 16727.

It is an arithmetic number, because the mean of its divisors is an integer number (1421466).

Almost surely, 2^11031143 is an apocalyptic number.

11031143 is a deficient number, since it is larger than the sum of its proper divisors (340585).

11031143 is an equidigital number, since it uses as much as digits as its factorization.

11031143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 11031143 is about 3321.3164558651. The cubic root of 11031143 is about 222.6076943621.

Adding to 11031143 its reverse (34113011), we get a palindrome (45144154).

The spelling of 11031143 in words is "eleven million, thirty-one thousand, one hundred forty-three".