1143033213 has 8 divisors (see below), whose sum is σ = 1741764928. Its totient is φ = 653161824.

The previous prime is 1143033163. The next prime is 1143033223. The reversal of 1143033213 is 3123303411.

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

It is not a de Polignac number, because 1143033213 - 2⁶ = 1143033149 is a prime.

It is a super-2 number, since 2×1143033213² = 2613049852042206738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 54430153 = 1143033213 / (1 + 1 + 4 + 3 + 0 + 3 + 3 + 2 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143033213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143033223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27215056 + ... + 27215097.

It is an arithmetic number, because the mean of its divisors is an integer number (217720616).

Almost surely, 2^1143033213 is an apocalyptic number.

It is an amenable number.

1143033213 is a deficient number, since it is larger than the sum of its proper divisors (598731715).

1143033213 is an equidigital number, since it uses as much as digits as its factorization.

1143033213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54430163.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1143033213 is about 33808.7742013815. The cubic root of 1143033213 is about 1045.5696055990.

Adding to 1143033213 its reverse (3123303411), we get a palindrome (4266336624).

The spelling of 1143033213 in words is "one billion, one hundred forty-three million, thirty-three thousand, two hundred thirteen".