13112420243 has 8 divisors (see below), whose sum is σ = 14260881936. Its totient is φ = 11983932000.

The previous prime is 13112420231. The next prime is 13112420257. The reversal of 13112420243 is 34202421131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13112420243 - 2⁴ = 13112420227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13112620243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4991993 + ... + 4994618.

It is an arithmetic number, because the mean of its divisors is an integer number (1782610242).

Almost surely, 2^13112420243 is an apocalyptic number.

13112420243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13112420243 is a deficient number, since it is larger than the sum of its proper divisors (1148461693).

13112420243 is a wasteful number, since it uses less digits than its factorization.

13112420243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9986725.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13112420243 its reverse (34202421131), we get a palindrome (47314841374).

The spelling of 13112420243 in words is "thirteen billion, one hundred twelve million, four hundred twenty thousand, two hundred forty-three".