111321113013 has 24 divisors (see below), whose sum is σ = 175439293536. Its totient is φ = 67458031200.

The previous prime is 111321112979. The next prime is 111321113083. The reversal of 111321113013 is 310311123111.

It is not a de Polignac number, because 111321113013 - 2⁹ = 111321112501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111321113083) 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 23 ways as a sum of consecutive naturals, for example, 680706 + ... + 828252.

It is an arithmetic number, because the mean of its divisors is an integer number (7309970564).

Almost surely, 2^111321113013 is an apocalyptic number.

It is an amenable number.

111321113013 is a deficient number, since it is larger than the sum of its proper divisors (64118180523).

111321113013 is a wasteful number, since it uses less digits than its factorization.

111321113013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155185 (or 155182 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 111321113013 its reverse (310311123111), we get a palindrome (421632236124).

The spelling of 111321113013 in words is "one hundred eleven billion, three hundred twenty-one million, one hundred thirteen thousand, thirteen".