13312121111 has 8 divisors (see below), whose sum is σ = 13830270480. Its totient is φ = 12797912512.

The previous prime is 13312121041. The next prime is 13312121117. The reversal of 13312121111 is 11112121331.

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

It is a de Polignac number, because none of the positive numbers 2^k-13312121111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13312121111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312121117) 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, 978305 + ... + 991818.

It is an arithmetic number, because the mean of its divisors is an integer number (1728783810).

Almost surely, 2^13312121111 is an apocalyptic number.

13312121111 is a deficient number, since it is larger than the sum of its proper divisors (518149369).

13312121111 is a wasteful number, since it uses less digits than its factorization.

13312121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970385.

The product of its digits is 36, while the sum is 17.

Adding to 13312121111 its reverse (11112121331), we get a palindrome (24424242442).

The spelling of 13312121111 in words is "thirteen billion, three hundred twelve million, one hundred twenty-one thousand, one hundred eleven".