12442191371 has 4 divisors (see below), whose sum is σ = 12511701000. Its totient is φ = 12372681744.

The previous prime is 12442191329. The next prime is 12442191451. The reversal of 12442191371 is 17319124421.

12442191371 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.

It is a cyclic number.

It is not a de Polignac number, because 12442191371 - 2¹⁰ = 12442190347 is a prime.

It is a super-2 number, since 2×12442191371² (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 (12442191571) by changing a digit.

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, 34754546 + ... + 34754903.

It is an arithmetic number, because the mean of its divisors is an integer number (3127925250).

Almost surely, 2^12442191371 is an apocalyptic number.

12442191371 is a deficient number, since it is larger than the sum of its proper divisors (69509629).

12442191371 is an equidigital number, since it uses as much as digits as its factorization.

12442191371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69509628.

The product of its digits is 12096, while the sum is 35.

The spelling of 12442191371 in words is "twelve billion, four hundred forty-two million, one hundred ninety-one thousand, three hundred seventy-one".