189011001100001 has 4 divisors (see below), whose sum is σ = 200129295282372. Its totient is φ = 177892706917632.

The previous prime is 189011001099931. The next prime is 189011001100039. The reversal of 189011001100001 is 100001100110981.

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 172529512232401 + 16481488867600 = 13135049^2 + 4059740^2 .

It is a cyclic number.

It is not a de Polignac number, because 189011001100001 - 2⁴² = 184612954588897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189011001100001.

It is not an unprimeable number, because it can be changed into a prime (189011001109001) 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, 5559147091160 + ... + 5559147091193.

It is an arithmetic number, because the mean of its divisors is an integer number (50032323820593).

Almost surely, 2^{189011001100001} is an apocalyptic number.

It is an amenable number.

189011001100001 is a deficient number, since it is larger than the sum of its proper divisors (11118294182371).

189011001100001 is a wasteful number, since it uses less digits than its factorization.

189011001100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11118294182370.

The product of its (nonzero) digits is 72, while the sum is 23.

Adding to 189011001100001 its reverse (100001100110981), we get a palindrome (289012101210982).

The spelling of 189011001100001 in words is "one hundred eighty-nine trillion, eleven billion, one million, one hundred thousand, one".