1143430235 has 4 divisors (see below), whose sum is σ = 1372116288. Its totient is φ = 914744184.

The previous prime is 1143430229. The next prime is 1143430273. The reversal of 1143430235 is 5320343411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5320343411 = 31 ⋅171623981.

It is a cyclic number.

It is not a de Polignac number, because 1143430235 - 2⁴ = 1143430219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114343019 + ... + 114343028.

It is an arithmetic number, because the mean of its divisors is an integer number (343029072).

Almost surely, 2^1143430235 is an apocalyptic number.

1143430235 is a deficient number, since it is larger than the sum of its proper divisors (228686053).

1143430235 is an equidigital number, since it uses as much as digits as its factorization.

1143430235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228686052.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1143430235 is about 33814.6452739046. The cubic root of 1143430235 is about 1045.6906478920.

Adding to 1143430235 its reverse (5320343411), we get a palindrome (6463773646).

The spelling of 1143430235 in words is "one billion, one hundred forty-three million, four hundred thirty thousand, two hundred thirty-five".