111525544106 has 4 divisors (see below), whose sum is σ = 167288316162. Its totient is φ = 55762772052.

The previous prime is 111525544103. The next prime is 111525544211. The reversal of 111525544106 is 601445525111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601445525111 = 9851 ⋅61054261.

It can be written as a sum of positive squares in only one way, i.e., 83410638481 + 28114905625 = 288809^2 + 167675^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111525544103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27881386025 + ... + 27881386028.

Almost surely, 2^111525544106 is an apocalyptic number.

111525544106 is a deficient number, since it is larger than the sum of its proper divisors (55762772056).

111525544106 is an equidigital number, since it uses as much as digits as its factorization.

111525544106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55762772055.

The product of its (nonzero) digits is 24000, while the sum is 35.

The spelling of 111525544106 in words is "one hundred eleven billion, five hundred twenty-five million, five hundred forty-four thousand, one hundred six".