12023505667 has 4 divisors (see below), whose sum is σ = 12026217496. Its totient is φ = 12020793840.

The previous prime is 12023505623. The next prime is 12023505679. The reversal of 12023505667 is 76650532021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12023505667 is a prime.

It is a super-2 number, since 2×12023505667² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12023505617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1349253 + ... + 1358134.

It is an arithmetic number, because the mean of its divisors is an integer number (3006554374).

Almost surely, 2^12023505667 is an apocalyptic number.

12023505667 is a deficient number, since it is larger than the sum of its proper divisors (2711829).

12023505667 is an equidigital number, since it uses as much as digits as its factorization.

12023505667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711828.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 12023505667 in words is "twelve billion, twenty-three million, five hundred five thousand, six hundred sixty-seven".