1140032321 has 2 divisors, whose sum is σ = 1140032322. Its totient is φ = 1140032320.

The previous prime is 1140032293. The next prime is 1140032323. The reversal of 1140032321 is 1232300411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 859134721 + 280897600 = 29311^2 + 16760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140032321 - 2¹⁰ = 1140031297 is a prime.

Together with 1140032323, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1140032321.

It is not a weakly prime, because it can be changed into another prime (1140032323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570016160 + 570016161.

It is an arithmetic number, because the mean of its divisors is an integer number (570016161).

Almost surely, 2^1140032321 is an apocalyptic number.

It is an amenable number.

1140032321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140032321 is an equidigital number, since it uses as much as digits as its factorization.

1140032321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1140032321 is about 33764.3646615777. The cubic root of 1140032321 is about 1044.6537992250.

Adding to 1140032321 its reverse (1232300411), we get a palindrome (2372332732).

The spelling of 1140032321 in words is "one billion, one hundred forty million, thirty-two thousand, three hundred twenty-one".