111212321121313 has 16 divisors (see below), whose sum is σ = 112024758605760. Its totient is φ = 110402930589696.

The previous prime is 111212321121277. The next prime is 111212321121371. The reversal of 111212321121313 is 313121123212111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111212321121313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111212321121383) 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 15 ways as a sum of consecutive naturals, for example, 571368153 + ... + 571562761.

It is an arithmetic number, because the mean of its divisors is an integer number (7001547412860).

Almost surely, 2^{111212321121313} is an apocalyptic number.

It is an amenable number.

111212321121313 is a deficient number, since it is larger than the sum of its proper divisors (812437484447).

111212321121313 is a wasteful number, since it uses less digits than its factorization.

111212321121313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202416.

The product of its digits is 432, while the sum is 25.

Adding to 111212321121313 its reverse (313121123212111), we get a palindrome (424333444333424).

The spelling of 111212321121313 in words is "one hundred eleven trillion, two hundred twelve billion, three hundred twenty-one million, one hundred twenty-one thousand, three hundred thirteen".