1143023321 has 8 divisors (see below), whose sum is σ = 1250999904. Its totient is φ = 1035724320.

The previous prime is 1143023311. The next prime is 1143023333. The reversal of 1143023321 is 1233203411.

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 1143023321 - 2⁶ = 1143023257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143023293 and 1143023302.

It is not an unprimeable number, because it can be changed into a prime (1143023311) 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, 165860 + ... + 172613.

It is an arithmetic number, because the mean of its divisors is an integer number (156374988).

Almost surely, 2^1143023321 is an apocalyptic number.

1143023321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1143023321 is a deficient number, since it is larger than the sum of its proper divisors (107976583).

1143023321 is a wasteful number, since it uses less digits than its factorization.

1143023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338791.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1143023321 is about 33808.6279076806. The cubic root of 1143023321 is about 1045.5665894124.

Adding to 1143023321 its reverse (1233203411), we get a palindrome (2376226732).

The spelling of 1143023321 in words is "one billion, one hundred forty-three million, twenty-three thousand, three hundred twenty-one".