1143234443 has 4 divisors (see below), whose sum is σ = 1231175568. Its totient is φ = 1055293320.

The previous prime is 1143234409. The next prime is 1143234457. The reversal of 1143234443 is 3444323411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3444323411 = 22787 ⋅151153.

It is a cyclic number.

It is not a de Polignac number, because 1143234443 - 2⁸ = 1143234187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143234643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43970543 + ... + 43970568.

It is an arithmetic number, because the mean of its divisors is an integer number (307793892).

Almost surely, 2^1143234443 is an apocalyptic number.

1143234443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1143234443 is a deficient number, since it is larger than the sum of its proper divisors (87941125).

1143234443 is an equidigital number, since it uses as much as digits as its factorization.

1143234443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87941124.

The product of its digits is 13824, while the sum is 29.

The square root of 1143234443 is about 33811.7500730146. The cubic root of 1143234443 is about 1045.6309592044.

Adding to 1143234443 its reverse (3444323411), we get a palindrome (4587557854).

The spelling of 1143234443 in words is "one billion, one hundred forty-three million, two hundred thirty-four thousand, four hundred forty-three".