111010110001 has 6 divisors (see below), whose sum is σ = 129134209650. Its totient is φ = 95151522816.

The previous prime is 111010109953. The next prime is 111010110031. The reversal of 111010110001 is 100011010111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 94433290000 + 16576820001 = 307300^2 + 128751^2 .

It is a de Polignac number, because none of the positive numbers 2^k-111010110001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111010110031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1132756176 + ... + 1132756273.

It is an arithmetic number, because the mean of its divisors is an integer number (21522368275).

Almost surely, 2^111010110001 is an apocalyptic number.

It is an amenable number.

111010110001 is a deficient number, since it is larger than the sum of its proper divisors (18124099649).

111010110001 is an equidigital number, since it uses as much as digits as its factorization.

111010110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265512463 (or 2265512456 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 111010110001 its reverse (100011010111), we get a palindrome (211021120112).

The spelling of 111010110001 in words is "one hundred eleven billion, ten million, one hundred ten thousand, one".