111131202213 has 6 divisors (see below), whose sum is σ = 160522847654. Its totient is φ = 74087468136.

The previous prime is 111131202211. The next prime is 111131202253. The reversal of 111131202213 is 312202131111.

It can be written as a sum of positive squares in only one way, i.e., 109205133444 + 1926068769 = 330462^2 + 43887^2 .

It is not a de Polignac number, because 111131202213 - 2¹ = 111131202211 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 (111131202211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6173955670 + ... + 6173955687.

Almost surely, 2^111131202213 is an apocalyptic number.

It is an amenable number.

111131202213 is a deficient number, since it is larger than the sum of its proper divisors (49391645441).

111131202213 is a wasteful number, since it uses less digits than its factorization.

111131202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12347911363 (or 12347911360 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111131202213 its reverse (312202131111), we get a palindrome (423333333324).

The spelling of 111131202213 in words is "one hundred eleven billion, one hundred thirty-one million, two hundred two thousand, two hundred thirteen".