111320321313 has 16 divisors (see below), whose sum is σ = 153790799040. Its totient is φ = 71579162304.

The previous prime is 111320321309. The next prime is 111320321323. The reversal of 111320321313 is 313123023111.

It is a happy number.

It is not a de Polignac number, because 111320321313 - 2² = 111320321309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111320321313.

It is not an unprimeable number, because it can be changed into a prime (111320321323) 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, 5923906 + ... + 5942667.

It is an arithmetic number, because the mean of its divisors is an integer number (9611924940).

Almost surely, 2^111320321313 is an apocalyptic number.

It is an amenable number.

111320321313 is a deficient number, since it is larger than the sum of its proper divisors (42470477727).

111320321313 is a wasteful number, since it uses less digits than its factorization.

111320321313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11866688.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 111320321313 its reverse (313123023111), we get a palindrome (424443344424).

The spelling of 111320321313 in words is "one hundred eleven billion, three hundred twenty million, three hundred twenty-one thousand, three hundred thirteen".