1034402321 has 2 divisors, whose sum is σ = 1034402322. Its totient is φ = 1034402320.

The previous prime is 1034402297. The next prime is 1034402359. The reversal of 1034402321 is 1232044301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1027843600 + 6558721 = 32060^2 + 2561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1034402321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1034402293 and 1034402302.

It is not a weakly prime, because it can be changed into another prime (1034402021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 517201160 + 517201161.

It is an arithmetic number, because the mean of its divisors is an integer number (517201161).

Almost surely, 2^1034402321 is an apocalyptic number.

It is an amenable number.

1034402321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1034402321 is an equidigital number, since it uses as much as digits as its factorization.

1034402321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1034402321 is about 32162.1255671947. The cubic root of 1034402321 is about 1011.3383952416.

Adding to 1034402321 its reverse (1232044301), we get a palindrome (2266446622).

The spelling of 1034402321 in words is "one billion, thirty-four million, four hundred two thousand, three hundred twenty-one".