811043212115 has 16 divisors (see below), whose sum is σ = 977564191968. Its totient is φ = 645960450816.

The previous prime is 811043212079. The next prime is 811043212163. The reversal of 811043212115 is 511212340118.

It is a cyclic number.

It is not a de Polignac number, because 811043212115 - 2¹⁴ = 811043195731 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9120809 + ... + 9209301.

It is an arithmetic number, because the mean of its divisors is an integer number (61097761998).

Almost surely, 2^811043212115 is an apocalyptic number.

811043212115 is a deficient number, since it is larger than the sum of its proper divisors (166520979853).

811043212115 is a wasteful number, since it uses less digits than its factorization.

811043212115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96598.

The product of its (nonzero) digits is 1920, while the sum is 29.

The spelling of 811043212115 in words is "eight hundred eleven billion, forty-three million, two hundred twelve thousand, one hundred fifteen".