311020011001211 has 16 divisors (see below), whose sum is σ = 328532976561600. Its totient is φ = 294019640990208.

The previous prime is 311020011001121. The next prime is 311020011001261. The reversal of 311020011001211 is 112100110020113.

It is a cyclic number.

It is not a de Polignac number, because 311020011001211 - 2³⁸ = 310745133094267 is a prime.

It is a super-2 number, since 2×311020011001211² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311020011001261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535897751 + ... + 536477808.

It is an arithmetic number, because the mean of its divisors is an integer number (20533311035100).

Almost surely, 2^{311020011001211} is an apocalyptic number.

311020011001211 is a deficient number, since it is larger than the sum of its proper divisors (17512965560389).

311020011001211 is a wasteful number, since it uses less digits than its factorization.

311020011001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072375798.

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

Adding to 311020011001211 its reverse (112100110020113), we get a palindrome (423120121021324).

The spelling of 311020011001211 in words is "three hundred eleven trillion, twenty billion, eleven million, one thousand, two hundred eleven".