12078570811 has 4 divisors (see below), whose sum is σ = 12078964000. Its totient is φ = 12078177624.

The previous prime is 12078570809. The next prime is 12078570851. The reversal of 12078570811 is 11807587021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11807587021 = 43 ⋅274595047.

It is a cyclic number.

It is not a de Polignac number, because 12078570811 - 2¹ = 12078570809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12078570851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146211 + ... + 213388.

It is an arithmetic number, because the mean of its divisors is an integer number (3019741000).

Almost surely, 2^12078570811 is an apocalyptic number.

12078570811 is a deficient number, since it is larger than the sum of its proper divisors (393189).

12078570811 is an equidigital number, since it uses as much as digits as its factorization.

12078570811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393188.

The product of its (nonzero) digits is 31360, while the sum is 40.

The spelling of 12078570811 in words is "twelve billion, seventy-eight million, five hundred seventy thousand, eight hundred eleven".