111210331112101 has 4 divisors (see below), whose sum is σ = 119764971966892. Its totient is φ = 102655690257312.

The previous prime is 111210331112051. The next prime is 111210331112117. The reversal of 111210331112101 is 101211133012111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14817187476100 + 96393143636001 = 3849310^2 + 9818001^2 .

It is a cyclic number.

It is not a de Polignac number, because 111210331112101 - 2¹³ = 111210331103909 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 (111210331112131) 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 3 ways as a sum of consecutive naturals, for example, 4277320427376 + ... + 4277320427401.

It is an arithmetic number, because the mean of its divisors is an integer number (29941242991723).

Almost surely, 2^{111210331112101} is an apocalyptic number.

It is an amenable number.

111210331112101 is a deficient number, since it is larger than the sum of its proper divisors (8554640854791).

111210331112101 is an equidigital number, since it uses as much as digits as its factorization.

111210331112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8554640854790.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 111210331112101 its reverse (101211133012111), we get a palindrome (212421464124212).

The spelling of 111210331112101 in words is "one hundred eleven trillion, two hundred ten billion, three hundred thirty-one million, one hundred twelve thousand, one hundred one".