111202111013 has 12 divisors (see below), whose sum is σ = 130027815180. Its totient is φ = 94822221312.

The previous prime is 111202110991. The next prime is 111202111019. The reversal of 111202111013 is 310111202111.

It can be written as a sum of positive squares in 2 ways, for example, as 23945086564 + 87257024449 = 154742^2 + 295393^2 .

It is a de Polignac number, because none of the positive numbers 2^k-111202111013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111202111019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5869898 + ... + 5888811.

It is an arithmetic number, because the mean of its divisors is an integer number (10835651265).

Almost surely, 2^111202111013 is an apocalyptic number.

It is an amenable number.

111202111013 is a deficient number, since it is larger than the sum of its proper divisors (18825704167).

111202111013 is a wasteful number, since it uses less digits than its factorization.

111202111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11758916 (or 11758909 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111202111013 its reverse (310111202111), we get a palindrome (421313313124).

The spelling of 111202111013 in words is "one hundred eleven billion, two hundred two million, one hundred eleven thousand, thirteen".