311212101100001 has 24 divisors (see below), whose sum is σ = 345384953563104. Its totient is φ = 279398022982400.

The previous prime is 311212101099989. The next prime is 311212101100007. The reversal of 311212101100001 is 100001101212113.

It is a de Polignac number, because none of the positive numbers 2^k-311212101100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311212101100007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129943775 + ... + 132317076.

It is an arithmetic number, because the mean of its divisors is an integer number (14391039731796).

Almost surely, 2^{311212101100001} is an apocalyptic number.

It is an amenable number.

311212101100001 is a deficient number, since it is larger than the sum of its proper divisors (34172852463103).

311212101100001 is a wasteful number, since it uses less digits than its factorization.

311212101100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262261009 (or 262260980 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 311212101100001 its reverse (100001101212113), we get a palindrome (411213202312114).

The spelling of 311212101100001 in words is "three hundred eleven trillion, two hundred twelve billion, one hundred one million, one hundred thousand, one".