311303213201 has 8 divisors (see below), whose sum is σ = 311674310184. Its totient is φ = 310932236160.

The previous prime is 311303213197. The next prime is 311303213279. The reversal of 311303213201 is 102312303113.

It can be written as a sum of positive squares in 4 ways, for example, as 195539955601 + 115763257600 = 442199^2 + 340240^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311303213201 - 2² = 311303213197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311303216201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5836811 + ... + 5889903.

It is an arithmetic number, because the mean of its divisors is an integer number (38959288773).

Almost surely, 2^311303213201 is an apocalyptic number.

It is an amenable number.

311303213201 is a deficient number, since it is larger than the sum of its proper divisors (371096983).

311303213201 is an equidigital number, since it uses as much as digits as its factorization.

311303213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59971.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 311303213201 its reverse (102312303113), we get a palindrome (413615516314).

The spelling of 311303213201 in words is "three hundred eleven billion, three hundred three million, two hundred thirteen thousand, two hundred one".