12013320023 has 4 divisors (see below), whose sum is σ = 12105024888. Its totient is φ = 11921615160.

The previous prime is 12013320001. The next prime is 12013320029. The reversal of 12013320023 is 32002331021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32002331021 = 263 ⋅121681867.

It is a cyclic number.

It is not a de Polignac number, because 12013320023 - 2⁶ = 12013319959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12013319983 and 12013320010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013320029) 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, 45852236 + ... + 45852497.

It is an arithmetic number, because the mean of its divisors is an integer number (3026256222).

Almost surely, 2^12013320023 is an apocalyptic number.

12013320023 is a deficient number, since it is larger than the sum of its proper divisors (91704865).

12013320023 is an equidigital number, since it uses as much as digits as its factorization.

12013320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91704864.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12013320023 its reverse (32002331021), we get a palindrome (44015651044).

The spelling of 12013320023 in words is "twelve billion, thirteen million, three hundred twenty thousand, twenty-three".