12011807 has 2 divisors, whose sum is σ = 12011808. Its totient is φ = 12011806.

The previous prime is 12011789. The next prime is 12011821. The reversal of 12011807 is 70811021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12011807 - 2²² = 7817503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005903 + 6005904.

It is an arithmetic number, because the mean of its divisors is an integer number (6005904).

Almost surely, 2^12011807 is an apocalyptic number.

12011807 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011807 is an equidigital number, since it uses as much as digits as its factorization.

12011807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 12011807 is about 3465.8053898048. The cubic root of 12011807 is about 229.0179107925.

Adding to 12011807 its reverse (70811021), we get a palindrome (82822828).

The spelling of 12011807 in words is "twelve million, eleven thousand, eight hundred seven".