1026376321 has 2 divisors, whose sum is σ = 1026376322. Its totient is φ = 1026376320.

The previous prime is 1026376319. The next prime is 1026376339. The reversal of 1026376321 is 1236736201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640646721 + 385729600 = 25311^2 + 19640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026376321 - 2¹ = 1026376319 is a prime.

It is a super-3 number, since 3×1026376321³ (a number of 28 digits) contains 333 as substring.

Together with 1026376319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1026376361) 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, 513188160 + 513188161.

It is an arithmetic number, because the mean of its divisors is an integer number (513188161).

Almost surely, 2^1026376321 is an apocalyptic number.

It is an amenable number.

1026376321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026376321 is an equidigital number, since it uses as much as digits as its factorization.

1026376321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 1026376321 is about 32037.1084993637. The cubic root of 1026376321 is about 1008.7159190470.

The spelling of 1026376321 in words is "one billion, twenty-six million, three hundred seventy-six thousand, three hundred twenty-one".