11143031 has 8 divisors (see below), whose sum is σ = 11486640. Its totient is φ = 10801728.

The previous prime is 11143019. The next prime is 11143037. The reversal of 11143031 is 13034111.

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

It is a cyclic number.

It is not a de Polignac number, because 11143031 - 2²² = 6948727 is a prime.

It is a super-2 number, since 2×11143031² = 248334279733922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11142997 and 11143015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16580 + ... + 17238.

It is an arithmetic number, because the mean of its divisors is an integer number (1435830).

Almost surely, 2^11143031 is an apocalyptic number.

11143031 is a deficient number, since it is larger than the sum of its proper divisors (343609).

11143031 is an equidigital number, since it uses as much as digits as its factorization.

11143031 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 11143031 is about 3338.1178828795. The cubic root of 11143031 is about 223.3577946524.

Adding to 11143031 its reverse (13034111), we get a palindrome (24177142).

The spelling of 11143031 in words is "eleven million, one hundred forty-three thousand, thirty-one".