111001000100101 has 8 divisors (see below), whose sum is σ = 111053355675224. Its totient is φ = 110948645445120.

The previous prime is 111001000100099. The next prime is 111001000100119. The reversal of 111001000100101 is 101001000100111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2450148437025 + 108550851663076 = 1565295^2 + 10418774^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111001000100101 - 2¹ = 111001000100099 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 (111001000100201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424456081 + ... + 424717513.

It is an arithmetic number, because the mean of its divisors is an integer number (13881669459403).

Almost surely, 2^{111001000100101} is an apocalyptic number.

It is an amenable number.

111001000100101 is a deficient number, since it is larger than the sum of its proper divisors (52355575123).

111001000100101 is a wasteful number, since it uses less digits than its factorization.

111001000100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460071.

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

Adding to 111001000100101 its reverse (101001000100111), we get a palindrome (212002000200212).

The spelling of 111001000100101 in words is "one hundred eleven trillion, one billion, one hundred thousand, one hundred one".