311303110201201 has 4 divisors (see below), whose sum is σ = 311391024102004. Its totient is φ = 311215196300400.

The previous prime is 311303110201157. The next prime is 311303110201207. The reversal of 311303110201201 is 102102011303113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92641087000576 + 218662023200625 = 9625024^2 + 14787225^2 .

It is a cyclic number.

It is not a de Polignac number, because 311303110201201 - 2¹¹ = 311303110199153 is a prime.

It is a super-2 number, since 2×311303110201201² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311303110201207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43956945090 + ... + 43956952171.

It is an arithmetic number, because the mean of its divisors is an integer number (77847756025501).

Almost surely, 2^{311303110201201} is an apocalyptic number.

It is an amenable number.

311303110201201 is a deficient number, since it is larger than the sum of its proper divisors (87913900803).

311303110201201 is an equidigital number, since it uses as much as digits as its factorization.

311303110201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87913900802.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 311303110201201 its reverse (102102011303113), we get a palindrome (413405121504314).

The spelling of 311303110201201 in words is "three hundred eleven trillion, three hundred three billion, one hundred ten million, two hundred one thousand, two hundred one".