111312031001213 has 16 divisors (see below), whose sum is σ = 127794716716800. Its totient is φ = 94975243756416.

The previous prime is 111312031001191. The next prime is 111312031001221. The reversal of 111312031001213 is 312100130213111.

It is a cyclic number.

It is not a de Polignac number, because 111312031001213 - 2⁸ = 111312031000957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312031001233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25328681 + ... + 29396702.

It is an arithmetic number, because the mean of its divisors is an integer number (7987169794800).

Almost surely, 2^{111312031001213} is an apocalyptic number.

It is an amenable number.

111312031001213 is a deficient number, since it is larger than the sum of its proper divisors (16482685715587).

111312031001213 is a wasteful number, since it uses less digits than its factorization.

111312031001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54726716.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 111312031001213 its reverse (312100130213111), we get a palindrome (423412161214324).

The spelling of 111312031001213 in words is "one hundred eleven trillion, three hundred twelve billion, thirty-one million, one thousand, two hundred thirteen".