10001001011101 has 4 divisors (see below), whose sum is σ = 10001450052412. Its totient is φ = 10000551969792.

The previous prime is 10001001011093. The next prime is 10001001011117. The reversal of 10001001011101 is 10111010010001.

It is a happy number.

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 24872444100 + 9976128567001 = 157710^2 + 3158501^2 .

It is a cyclic number.

It is not a de Polignac number, because 10001001011101 - 2³ = 10001001011093 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 (10001001011501) 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, 224487246 + ... + 224531791.

It is an arithmetic number, because the mean of its divisors is an integer number (2500362513103).

Almost surely, 2^{10001001011101} is an apocalyptic number.

It is an amenable number.

10001001011101 is a deficient number, since it is larger than the sum of its proper divisors (449041311).

10001001011101 is an equidigital number, since it uses as much as digits as its factorization.

10001001011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449041310.

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

Adding to 10001001011101 its reverse (10111010010001), we get a palindrome (20112011021102).

The spelling of 10001001011101 in words is "ten trillion, one billion, one million, eleven thousand, one hundred one".