2011311113212 has 48 divisors (see below), whose sum is σ = 3822329548800. Its totient is φ = 923729446080.

The previous prime is 2011311113209. The next prime is 2011311113221. The reversal of 2011311113212 is 2123111131102.

It is a self number, because there is not a number n which added to its sum of digits gives 2011311113212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4527828 + ... + 4952155.

It is an arithmetic number, because the mean of its divisors is an integer number (79631865600).

Almost surely, 2^{2011311113212} is an apocalyptic number.

It is an amenable number.

2011311113212 is a deficient number, since it is larger than the sum of its proper divisors (1811018435588).

2011311113212 is a wasteful number, since it uses less digits than its factorization.

2011311113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9480106 (or 9480104 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 2011311113212 its reverse (2123111131102), we get a palindrome (4134422244314).

The spelling of 2011311113212 in words is "two trillion, eleven billion, three hundred eleven million, one hundred thirteen thousand, two hundred twelve".