111241232101 has 4 divisors (see below), whose sum is σ = 111241924204. Its totient is φ = 111240540000.

The previous prime is 111241232017. The next prime is 111241232117. The reversal of 111241232101 is 101232142111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 101232142111 = 89 ⋅1137439799.

It can be written as a sum of positive squares in 2 ways, for example, as 40109675076 + 71131557025 = 200274^2 + 266705^2 .

It is a cyclic number.

It is not a de Polignac number, because 111241232101 - 2¹³ = 111241223909 is a prime.

It is a super-2 number, since 2×111241232101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111241232171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34651 + ... + 472951.

It is an arithmetic number, because the mean of its divisors is an integer number (27810481051).

Almost surely, 2^111241232101 is an apocalyptic number.

It is an amenable number.

111241232101 is a deficient number, since it is larger than the sum of its proper divisors (692103).

111241232101 is an equidigital number, since it uses as much as digits as its factorization.

111241232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692102.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111241232101 its reverse (101232142111), we get a palindrome (212473374212).

It can be divided in two parts, 11124 and 1232101, that added together give a square (1243225 = 1115²).

The spelling of 111241232101 in words is "one hundred eleven billion, two hundred forty-one million, two hundred thirty-two thousand, one hundred one".