311301020201 has 4 divisors (see below), whose sum is σ = 315565417812. Its totient is φ = 307036622592.

The previous prime is 311301020131. The next prime is 311301020207. The reversal of 311301020201 is 102020103113.

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 270020533225 + 41280486976 = 519635^2 + 203176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311301020201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311301020207) 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, 2132198696 + ... + 2132198841.

It is an arithmetic number, because the mean of its divisors is an integer number (78891354453).

Almost surely, 2^311301020201 is an apocalyptic number.

It is an amenable number.

311301020201 is a deficient number, since it is larger than the sum of its proper divisors (4264397611).

311301020201 is an equidigital number, since it uses as much as digits as its factorization.

311301020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264397610.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 311301020201 its reverse (102020103113), we get a palindrome (413321123314).

The spelling of 311301020201 in words is "three hundred eleven billion, three hundred one million, twenty thousand, two hundred one".