111513355173373 has 4 divisors (see below), whose sum is σ = 111794245237180. Its totient is φ = 111232465109568.

The previous prime is 111513355173343. The next prime is 111513355173403. The reversal of 111513355173373 is 373371553315111.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (111513355173343) and next prime (111513355173403).

It can be written as a sum of positive squares in 2 ways, for example, as 71929854435609 + 39583500737764 = 8481147^2 + 6291542^2 .

It is a cyclic number.

It is not a de Polignac number, because 111513355173373 - 2³³ = 111504765238781 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 (111513355173313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140445031308 + ... + 140445032101.

It is an arithmetic number, because the mean of its divisors is an integer number (27948561309295).

Almost surely, 2^{111513355173373} is an apocalyptic number.

It is an amenable number.

111513355173373 is a deficient number, since it is larger than the sum of its proper divisors (280890063807).

111513355173373 is an equidigital number, since it uses as much as digits as its factorization.

111513355173373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280890063806.

The product of its digits is 1488375, while the sum is 49.

The spelling of 111513355173373 in words is "one hundred eleven trillion, five hundred thirteen billion, three hundred fifty-five million, one hundred seventy-three thousand, three hundred seventy-three".