1143124031 has 4 divisors (see below), whose sum is σ = 1306427472. Its totient is φ = 979820592.

The previous prime is 1143123983. The next prime is 1143124033. The reversal of 1143124031 is 1304213411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143124031 is a prime.

It is a super-2 number, since 2×1143124031² = 2613465100499377922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1143123994 and 1143124012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143124033) 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 3 ways as a sum of consecutive naturals, for example, 81651710 + ... + 81651723.

It is an arithmetic number, because the mean of its divisors is an integer number (326606868).

Almost surely, 2^1143124031 is an apocalyptic number.

1143124031 is a deficient number, since it is larger than the sum of its proper divisors (163303441).

1143124031 is an equidigital number, since it uses as much as digits as its factorization.

1143124031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163303440.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1143124031 is about 33810.1172875812. The cubic root of 1143124031 is about 1045.5972962571.

Adding to 1143124031 its reverse (1304213411), we get a palindrome (2447337442).

The spelling of 1143124031 in words is "one billion, one hundred forty-three million, one hundred twenty-four thousand, thirty-one".