12023379785 has 4 divisors (see below), whose sum is σ = 14428055748. Its totient is φ = 9618703824.

The previous prime is 12023379779. The next prime is 12023379811. The reversal of 12023379785 is 58797332021.

12023379785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58797332021 = 941 ⋅62483881.

It can be written as a sum of positive squares in 2 ways, for example, as 4720651849 + 7302727936 = 68707^2 + 85456^2 .

It is a cyclic number.

It is not a de Polignac number, because 12023379785 - 2¹⁰ = 12023378761 is a prime.

It is a super-2 number, since 2×12023379785² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202337974 + ... + 1202337983.

It is an arithmetic number, because the mean of its divisors is an integer number (3607013937).

Almost surely, 2^12023379785 is an apocalyptic number.

It is an amenable number.

12023379785 is a deficient number, since it is larger than the sum of its proper divisors (2404675963).

12023379785 is an equidigital number, since it uses as much as digits as its factorization.

12023379785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404675962.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 12023379785 in words is "twelve billion, twenty-three million, three hundred seventy-nine thousand, seven hundred eighty-five".