100001100010001 has 4 divisors (see below), whose sum is σ = 100001125457472. Its totient is φ = 100001074562532.

The previous prime is 100001100009983. The next prime is 100001100010073. The reversal of 100001100010001 is 100010001100001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100001100010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100001100010081) 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, 5438885 + ... + 15152018.

It is an arithmetic number, because the mean of its divisors is an integer number (25000281364368).

Almost surely, 2^{100001100010001} is an apocalyptic number.

It is an amenable number.

100001100010001 is a deficient number, since it is larger than the sum of its proper divisors (25447471).

100001100010001 is an equidigital number, since it uses as much as digits as its factorization.

100001100010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25447470.

The product of its (nonzero) digits is 1, while the sum is 5.

Adding to 100001100010001 its reverse (100010001100001), we get a palindrome (200011101110002).

It can be divided in two parts, 100001 and 100010001, that multiplied together give a palindrome (10001100110001).

The spelling of 100001100010001 in words is "one hundred trillion, one billion, one hundred million, ten thousand, one".