101320321321 has 2 divisors, whose sum is σ = 101320321322. Its totient is φ = 101320321320.

The previous prime is 101320321261. The next prime is 101320321357. The reversal of 101320321321 is 123123023101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99953984025 + 1366337296 = 316155^2 + 36964^2 .

It is a cyclic number.

It is not a de Polignac number, because 101320321321 - 2²¹ = 101318224169 is a prime.

It is not a weakly prime, because it can be changed into another prime (101320721321) 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, 50660160660 + 50660160661.

It is an arithmetic number, because the mean of its divisors is an integer number (50660160661).

Almost surely, 2^101320321321 is an apocalyptic number.

It is an amenable number.

101320321321 is a deficient number, since it is larger than the sum of its proper divisors (1).

101320321321 is an equidigital number, since it uses as much as digits as its factorization.

101320321321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 101320321321 its reverse (123123023101), we get a palindrome (224443344422).

The spelling of 101320321321 in words is "one hundred one billion, three hundred twenty million, three hundred twenty-one thousand, three hundred twenty-one".