1403234321 has 2 divisors, whose sum is σ = 1403234322. Its totient is φ = 1403234320.

The previous prime is 1403234311. The next prime is 1403234333. The reversal of 1403234321 is 1234323041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 808606096 + 594628225 = 28436^2 + 24385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1403234321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1403234311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701617160 + 701617161.

It is an arithmetic number, because the mean of its divisors is an integer number (701617161).

Almost surely, 2^1403234321 is an apocalyptic number.

It is an amenable number.

1403234321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403234321 is an equidigital number, since it uses as much as digits as its factorization.

1403234321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1403234321 is about 37459.7693666152. The cubic root of 1403234321 is about 1119.5497555144.

Adding to 1403234321 its reverse (1234323041), we get a palindrome (2637557362).

The spelling of 1403234321 in words is "one billion, four hundred three million, two hundred thirty-four thousand, three hundred twenty-one".