1350620321 has 2 divisors, whose sum is σ = 1350620322. Its totient is φ = 1350620320.

The previous prime is 1350620317. The next prime is 1350620347. The reversal of 1350620321 is 1230260531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1227521296 + 123099025 = 35036^2 + 11095^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350620321 - 2² = 1350620317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1350620311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675310160 + 675310161.

It is an arithmetic number, because the mean of its divisors is an integer number (675310161).

Almost surely, 2^1350620321 is an apocalyptic number.

It is an amenable number.

1350620321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1350620321 is an equidigital number, since it uses as much as digits as its factorization.

1350620321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1350620321 is about 36750.7866718523. The cubic root of 1350620321 is about 1105.3787038266.

Adding to 1350620321 its reverse (1230260531), we get a palindrome (2580880852).

The spelling of 1350620321 in words is "one billion, three hundred fifty million, six hundred twenty thousand, three hundred twenty-one".