1143021343 has 8 divisors (see below), whose sum is σ = 1159316496. Its totient is φ = 1126824000.

The previous prime is 1143021331. The next prime is 1143021419. The reversal of 1143021343 is 3431203411.

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

It is a cyclic number.

It is not a de Polignac number, because 1143021343 - 2⁵ = 1143021311 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 (1143021043) 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, 753 + ... + 47818.

It is an arithmetic number, because the mean of its divisors is an integer number (144914562).

Almost surely, 2^1143021343 is an apocalyptic number.

1143021343 is a deficient number, since it is larger than the sum of its proper divisors (16295153).

1143021343 is a wasteful number, since it uses less digits than its factorization.

1143021343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48905.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1143021343 is about 33808.5986547801. The cubic root of 1143021343 is about 1045.5659862950.

Adding to 1143021343 its reverse (3431203411), we get a palindrome (4574224754).

The spelling of 1143021343 in words is "one billion, one hundred forty-three million, twenty-one thousand, three hundred forty-three".