311213200111 has 16 divisors (see below), whose sum is σ = 351263715840. Its totient is φ = 273125270880.

The previous prime is 311213200099. The next prime is 311213200121. The reversal of 311213200111 is 111002312113.

It is a happy number.

It is not a de Polignac number, because 311213200111 - 2¹¹ = 311213198063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311213200121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2231350 + ... + 2366716.

It is an arithmetic number, because the mean of its divisors is an integer number (21953982240).

Almost surely, 2^311213200111 is an apocalyptic number.

311213200111 is a deficient number, since it is larger than the sum of its proper divisors (40050515729).

311213200111 is a wasteful number, since it uses less digits than its factorization.

311213200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142614.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 311213200111 its reverse (111002312113), we get a palindrome (422215512224).

The spelling of 311213200111 in words is "three hundred eleven billion, two hundred thirteen million, two hundred thousand, one hundred eleven".