1020653323 has 2 divisors, whose sum is σ = 1020653324. Its totient is φ = 1020653322.

The previous prime is 1020653321. The next prime is 1020653339. The reversal of 1020653323 is 3233560201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020653323 - 2¹ = 1020653321 is a prime.

Together with 1020653321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1020653321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510326661 + 510326662.

It is an arithmetic number, because the mean of its divisors is an integer number (510326662).

Almost surely, 2^1020653323 is an apocalyptic number.

1020653323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020653323 is an equidigital number, since it uses as much as digits as its factorization.

1020653323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 1020653323 is about 31947.6653763620. The cubic root of 1020653323 is about 1006.8375819155.

The spelling of 1020653323 in words is "one billion, twenty million, six hundred fifty-three thousand, three hundred twenty-three".