1143421443 has 6 divisors (see below), whose sum is σ = 1651608764. Its totient is φ = 762280956.

The previous prime is 1143421439. The next prime is 1143421451. The reversal of 1143421443 is 3441243411.

1143421443 is a `hidden beast` number, since 11 + 434 + 214 + 4 + 3 = 666.

It is not a de Polignac number, because 1143421443 - 2² = 1143421439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143421403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63523405 + ... + 63523422.

Almost surely, 2^1143421443 is an apocalyptic number.

1143421443 is a deficient number, since it is larger than the sum of its proper divisors (508187321).

1143421443 is a wasteful number, since it uses less digits than its factorization.

1143421443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127046833 (or 127046830 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1143421443 is about 33814.5152708123. The cubic root of 1143421443 is about 1045.6879677297.

Adding to 1143421443 its reverse (3441243411), we get a palindrome (4584664854).

The spelling of 1143421443 in words is "one billion, one hundred forty-three million, four hundred twenty-one thousand, four hundred forty-three".