202011313321 has 2 divisors, whose sum is σ = 202011313322.
Its totient is φ = 202011313320.
The previous prime is 202011313267. The next prime is 202011313381. The reversal of 202011313321 is 123313110202.
Adding to 202011313321 its reverse (123313110202), we get a palindrome (325324423523).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 201950473321 + 60840000 = 449389^2 + 7800^2
It is a cyclic number.
It is not a de Polignac number, because 202011313321 - 215 = 202011280553 is a prime.
It is not a weakly prime, because it can be changed into another prime (202011313381) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005656660 + 101005656661.
It is an arithmetic number, because the mean of its divisors is an integer number (101005656661).
Almost surely, 2202011313321 is an apocalyptic number.
It is an amenable number.
202011313321 is a deficient number, since it is larger than the sum of its proper divisors (1).
202011313321 is an equidigital number, since it uses as much as digits as its factorization.
202011313321 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216, while the sum is 19.
The spelling of 202011313321 in words is "two hundred two billion, eleven million, three hundred thirteen thousand, three hundred twenty-one".