11001000101173 has 4 divisors (see below), whose sum is σ = 11001014042668. Its totient is φ = 11000986159680.

The previous prime is 11001000101171. The next prime is 11001000101293. The reversal of 11001000101173 is 37110100010011.

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 7664470436484 + 3336529664689 = 2768478^2 + 1826617^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001000101173 - 2¹ = 11001000101171 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 (11001000101171) 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, 5711268 + ... + 7390573.

It is an arithmetic number, because the mean of its divisors is an integer number (2750253510667).

Almost surely, 2^{11001000101173} is an apocalyptic number.

It is an amenable number.

11001000101173 is a deficient number, since it is larger than the sum of its proper divisors (13941495).

11001000101173 is an equidigital number, since it uses as much as digits as its factorization.

11001000101173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13941494.

The product of its (nonzero) digits is 21, while the sum is 16.

Adding to 11001000101173 its reverse (37110100010011), we get a palindrome (48111100111184).

The spelling of 11001000101173 in words is "eleven trillion, one billion, one hundred one thousand, one hundred seventy-three".