311012212001 has 4 divisors (see below), whose sum is σ = 324534482112. Its totient is φ = 297489941892.

The previous prime is 311012211959. The next prime is 311012212003. The reversal of 311012212001 is 100212210113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 311012212001 - 2¹⁴ = 311012195617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311012212003) 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, 6761135021 + ... + 6761135066.

It is an arithmetic number, because the mean of its divisors is an integer number (81133620528).

Almost surely, 2^311012212001 is an apocalyptic number.

It is an amenable number.

311012212001 is a deficient number, since it is larger than the sum of its proper divisors (13522270111).

311012212001 is a wasteful number, since it uses less digits than its factorization.

311012212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13522270110.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 311012212001 its reverse (100212210113), we get a palindrome (411224422114).

The spelling of 311012212001 in words is "three hundred eleven billion, twelve million, two hundred twelve thousand, one".