1143230022 has 36 divisors (see below), whose sum is σ = 2722656300. Its totient is φ = 346432680.

The previous prime is 1143229993. The next prime is 1143230029. The reversal of 1143230022 is 2200323411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1143229977 and 1143230004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143230029) 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 17 ways as a sum of consecutive naturals, for example, 260272 + ... + 264627.

Almost surely, 2^1143230022 is an apocalyptic number.

1143230022 is an abundant number, since it is smaller than the sum of its proper divisors (1579426278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143230022 is a wasteful number, since it uses less digits than its factorization.

1143230022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524929 (or 524915 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1143230022 is about 33811.6846962703. The cubic root of 1143230022 is about 1045.6296113501.

Adding to 1143230022 its reverse (2200323411), we get a palindrome (3343553433).

The spelling of 1143230022 in words is "one billion, one hundred forty-three million, two hundred thirty thousand, twenty-two".