12442232113 has 4 divisors (see below), whose sum is σ = 12592138608. Its totient is φ = 12292325620.

The previous prime is 12442232093. The next prime is 12442232177. The reversal of 12442232113 is 31123224421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12442232113 - 2¹³ = 12442223921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12442232713) 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, 74953123 + ... + 74953288.

It is an arithmetic number, because the mean of its divisors is an integer number (3148034652).

Almost surely, 2^12442232113 is an apocalyptic number.

It is an amenable number.

12442232113 is a deficient number, since it is larger than the sum of its proper divisors (149906495).

12442232113 is an equidigital number, since it uses as much as digits as its factorization.

12442232113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149906494.

The product of its digits is 2304, while the sum is 25.

Adding to 12442232113 its reverse (31123224421), we get a palindrome (43565456534).

The spelling of 12442232113 in words is "twelve billion, four hundred forty-two million, two hundred thirty-two thousand, one hundred thirteen".