1143130213 has 4 divisors (see below), whose sum is σ = 1146736620. Its totient is φ = 1139523808.

The previous prime is 1143130211. The next prime is 1143130217. The reversal of 1143130213 is 3120313411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3120313411 = 193 ⋅16167427.

It can be written as a sum of positive squares in 2 ways, for example, as 30107169 + 1113023044 = 5487^2 + 33362^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143130213 - 2¹ = 1143130211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143130211) 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 3 ways as a sum of consecutive naturals, for example, 1802728 + ... + 1803361.

It is an arithmetic number, because the mean of its divisors is an integer number (286684155).

Almost surely, 2^1143130213 is an apocalyptic number.

It is an amenable number.

1143130213 is a deficient number, since it is larger than the sum of its proper divisors (3606407).

1143130213 is an equidigital number, since it uses as much as digits as its factorization.

1143130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3606406.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1143130213 is about 33810.2087097965. The cubic root of 1143130213 is about 1045.5991811126.

Adding to 1143130213 its reverse (3120313411), we get a palindrome (4263443624).

The spelling of 1143130213 in words is "one billion, one hundred forty-three million, one hundred thirty thousand, two hundred thirteen".