1211330000011 has 16 divisors (see below), whose sum is σ = 1296124749504. Its totient is φ = 1128058297344.

The previous prime is 1211330000009. The next prime is 1211330000017. The reversal of 1211330000011 is 1100000331121.

It is not a de Polignac number, because 1211330000011 - 2¹ = 1211330000009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211329999946 and 1211330000000.

It is not an unprimeable number, because it can be changed into a prime (1211330000017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1799005 + ... + 2378881.

It is an arithmetic number, because the mean of its divisors is an integer number (81007796844).

Almost surely, 2^{1211330000011} is an apocalyptic number.

1211330000011 is a deficient number, since it is larger than the sum of its proper divisors (84794749493).

1211330000011 is a wasteful number, since it uses less digits than its factorization.

1211330000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581190.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1211330000011 its reverse (1100000331121), we get a palindrome (2311330331132).

The spelling of 1211330000011 in words is "one trillion, two hundred eleven billion, three hundred thirty million, eleven", and thus it is an aban number.