12366523011 has 4 divisors (see below), whose sum is σ = 16488697352. Its totient is φ = 8244348672.

The previous prime is 12366522991. The next prime is 12366523021. The reversal of 12366523011 is 11032566321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12366523011 - 2¹⁸ = 12366260867 is a prime.

It is a super-2 number, since 2×12366523011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12366523011.

It is not an unprimeable number, because it can be changed into a prime (12366523021) 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, 2061087166 + ... + 2061087171.

It is an arithmetic number, because the mean of its divisors is an integer number (4122174338).

Almost surely, 2^12366523011 is an apocalyptic number.

12366523011 is a deficient number, since it is larger than the sum of its proper divisors (4122174341).

12366523011 is an equidigital number, since it uses as much as digits as its factorization.

12366523011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122174340.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 12366523011 in words is "twelve billion, three hundred sixty-six million, five hundred twenty-three thousand, eleven".