1012313321 has 2 divisors, whose sum is σ = 1012313322. Its totient is φ = 1012313320.

The previous prime is 1012313311. The next prime is 1012313387. The reversal of 1012313321 is 1233132101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 924160000 + 88153321 = 30400^2 + 9389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012313321 - 2⁶ = 1012313257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012313321.

It is not a weakly prime, because it can be changed into another prime (1012313311) 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, 506156660 + 506156661.

It is an arithmetic number, because the mean of its divisors is an integer number (506156661).

Almost surely, 2^1012313321 is an apocalyptic number.

It is an amenable number.

1012313321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012313321 is an equidigital number, since it uses as much as digits as its factorization.

1012313321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1012313321 is about 31816.8716406877. The cubic root of 1012313321 is about 1004.0877082073.

Adding to 1012313321 its reverse (1233132101), we get a palindrome (2245445422).

The spelling of 1012313321 in words is "one billion, twelve million, three hundred thirteen thousand, three hundred twenty-one".