311012330401 has 4 divisors (see below), whose sum is σ = 311033262100. Its totient is φ = 310991398704.

The previous prime is 311012330353. The next prime is 311012330407. The reversal of 311012330401 is 104033210113.

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 115736720401 + 195275610000 = 340201^2 + 441900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311012330401 is a prime.

It is a super-2 number, since 2×311012330401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311012330407) 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, 10443546 + ... + 10473283.

It is an arithmetic number, because the mean of its divisors is an integer number (77758315525).

Almost surely, 2^311012330401 is an apocalyptic number.

It is an amenable number.

311012330401 is a deficient number, since it is larger than the sum of its proper divisors (20931699).

311012330401 is a wasteful number, since it uses less digits than its factorization.

311012330401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20931698.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 311012330401 its reverse (104033210113), we get a palindrome (415045540514).

The spelling of 311012330401 in words is "three hundred eleven billion, twelve million, three hundred thirty thousand, four hundred one".