101312030321 has 2 divisors, whose sum is σ = 101312030322. Its totient is φ = 101312030320.

The previous prime is 101312030317. The next prime is 101312030329. The reversal of 101312030321 is 123030213101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100926300721 + 385729600 = 317689^2 + 19640^2 .

It is an emirp because it is prime and its reverse (123030213101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101312030321 - 2² = 101312030317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101312030321.

It is not a weakly prime, because it can be changed into another prime (101312030329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50656015160 + 50656015161.

It is an arithmetic number, because the mean of its divisors is an integer number (50656015161).

Almost surely, 2^101312030321 is an apocalyptic number.

It is an amenable number.

101312030321 is a deficient number, since it is larger than the sum of its proper divisors (1).

101312030321 is an equidigital number, since it uses as much as digits as its factorization.

101312030321 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.

Adding to 101312030321 its reverse (123030213101), we get a palindrome (224342243422).

The spelling of 101312030321 in words is "one hundred one billion, three hundred twelve million, thirty thousand, three hundred twenty-one".