13121112012223 has 8 divisors (see below), whose sum is σ = 13478912815088. Its totient is φ = 12763478375424.

The previous prime is 13121112012167. The next prime is 13121112012227. The reversal of 13121112012223 is 32221021112131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13121112012223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13121112012194 and 13121112012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121112012227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41632386 + ... + 41946367.

It is an arithmetic number, because the mean of its divisors is an integer number (1684864101886).

Almost surely, 2^{13121112012223} is an apocalyptic number.

13121112012223 is a deficient number, since it is larger than the sum of its proper divisors (357800802865).

13121112012223 is an equidigital number, since it uses as much as digits as its factorization.

13121112012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83583033.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 13121112012223 its reverse (32221021112131), we get a palindrome (45342133124354).

The spelling of 13121112012223 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twelve million, twelve thousand, two hundred twenty-three".