111312212011321 has 8 divisors (see below), whose sum is σ = 111381082495200. Its totient is φ = 111243361240800.

The previous prime is 111312212011313. The next prime is 111312212011327. The reversal of 111312212011321 is 123110212213111.

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 111312212011321 - 2³ = 111312212011313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111312212011292 and 111312212011301.

It is not an unprimeable number, because it can be changed into a prime (111312212011327) 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, 6376245 + ... + 16225933.

It is an arithmetic number, because the mean of its divisors is an integer number (13922635311900).

Almost surely, 2^{111312212011321} is an apocalyptic number.

It is an amenable number.

111312212011321 is a deficient number, since it is larger than the sum of its proper divisors (68870483879).

111312212011321 is an equidigital number, since it uses as much as digits as its factorization.

111312212011321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9856679.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 111312212011321 its reverse (123110212213111), we get a palindrome (234422424224432).

The spelling of 111312212011321 in words is "one hundred eleven trillion, three hundred twelve billion, two hundred twelve million, eleven thousand, three hundred twenty-one".